10 Best Group Travel Companies for Millennials in 2025/2026

TL; DR

• Millennials are redefining group travel – choosing experiences that blend adventure with real connection and, often, a luxury small-group feel. 
• Millennials = born 1981 to 1996, so in 2025, they’re aged 29 to 44
• Flash Pack sets the gold standard for small groups of millennial solo travelers, with boutique trips built around friendship between people of a similar age range, plus unique local experiences and beautiful hotels. 
• Other brands cater to younger millennials (often grouped with Gen Z), or those wanting special features e.g. backpacking, budget-friendly hostels, or women-only trips.

Quick Take (2025/2026)

• Flash Pack – Boutique small-group adventures with unique experiences and lifelong friendships. Designed for solo travelers aged 30-45 and 45-59. Average age = 40 years old.
• Gutsy Girls – Women-only European trips mixing adventure, empowerment, and fun. Open to travelers of all ages. Average age = between 24 and 60 years old.
• Travel Talk – Sociable, good-value tours with standout Christmas market trips. Open to anyone aged 18+. Average age = from early 20s to retirees.
• Intro Travel – Group trips for young travelers, including Aus/NZ working holidays blending travel & paid work. Designed for travelers aged 18–40s. Average age = Mainly 20s and 30s.
• Backroads – Active biking/hiking trips with flexible daily choices. New category designed for 30s & 40s travelers. Average age outside this category = 50s and 60s.

• Intrepid – Affordable small-group trips with cultural and adventure themes. Open to all age ranges, with a standalone category designed for travelers aged 18–35. 
• G Adventures – Community-driven tours with hostel stays and flexible add-ons. Open to all age ranges, with a standalone category designed for travelers aged 18-30s. 
• Topdeck Travel – Big, sociable groups with discounts for friends traveling together. Designed for travelers aged 18–32. Average age = 23-25 years old.
• Contiki – Global adventures for solos and couples who enjoy a large, social group setting. Designed for travelers aged 18–35. Average age = 26 years old.
• MacBackpackers – Fun Scottish backpacker tours with hostels and campfires. Designed for travelers aged 18–39.

1. Flash Pack - Best For Millennials Seeking New Friendships

Who It’s Best For

• Flash Pack creates boutique adventures for solo travelers in small groups (max 16), tailored to ages 30–49 and 45–59. Its luxury trips come with guaranteed small group sizes. 
• Flash Pack’s mission is to spark meaningful friendships through immersive, can’t-do-alone experiences, guided by Pack Leaders who feel more like friends than tour guides.
• Community is at the heart: 80% of Flashpackers stay in touch post-trip, with many rebooking together. Curated itineraries feature unique twists (from vineyard dinners to hidden hikes), paired with stylish local hotels that appeal to millennial professionals seeking both comfort and authenticity.

Why Choose Millennial Group Travel With Flash Pack?

• Flash Pack is made exclusively for small groups of solo travelers (max 16), and its 30-49 age group falls firmly within the millennial demographic. It also runs trips for solo travelers aged 45-59
• A leading solo travel company specializing in luxury small group tours, its mission is to form meaningful friendships around the world, using the power of travel – along with its commitment to a strong group dynamic – to bring people together
• The group dynamic is central. Flash Pack’s recipe for immersive adventure means groups bond quickly, and form lasting connections and friendships. 80% of Flashpackers stay in touch after a trip has ended, and travelers often travel on subsequent trips together, forming part of Flash Pack’s tight knit global community. Customers often describe the open, friendly group dynamic as the very best part of a Flash Pack trip

• Flash Pack’s boutique, curated group adventures also feature ‘can’t-do-by-yourself’ experiences to delight its community of like-minded travelers, including millennials. It works alongside Pack Leaders (local guides) to make each trip as immersive and authentic as possible
• Unique itinerary twists could include anything from standout sleepovers to off-radar hiking routes, hidden vineyards, martial arts workshops, dinner with a local family and more
• Flash Pack guides don’t just lead a group; they’re an integral part of the dynamic. Flashpackers often talk about their Pack Leaders being like a friend or family member
• Flash Pack seeks out the best, most unique or family-run places to stay – often with facilities such as rooftop pools, hot tubs and cutting-edge cuisine. The beautiful hotels are part of the reason why millennials/professionals aged 30 and above love the company

Latest customer reviews: 

Maddy via Trustpilot (reviewed July 2025) “For those in their 30s and 40s looking for adventure, history, culture, and friendship and NO pressure to party or “go with the group,” you must choose Flash Pack! I just spent 8 days in Greece with a super knowledgeable and loveable tour guide Magda who made my 14-person group feel relaxed and cared for. Flash Pack takes care of everything so that you can simply look around, listen, and enjoy the country you’re visiting.”

Valentina via Trustpilot (reviewed June 2025) “The group dynamic was amazing–10 travelers total, mostly solo, all in their 30s and 40s, and every single one up for adventure and good food. We spent nearly all our free time together and genuinely felt like a little family by the end […] Three words to sum it up: unforgettable, joyful, effortless.”

Chris via Trustpilot (reviewed December 2024) “We had a group of 10, everyone on the tour was a solo traveler, and everyone came into the tour with the right mindset. I know every tour group is different, but I think Flash Pack’s target demographic of 30s/40s solo travelers just seems to attract the kind of people you want to travel with.”

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2. Gutsy Girls - Best For Women-Only Millennial Trips

Who It’s Best For

• Gutsy Girls offers women-only group trips and retreats across Europe, creating a safe, empowering environment for solo travelers. Activities range from paddleboarding and hiking to horse-riding and yoga, with expert hosts and local guides.
• Their mission is to inspire women of all ages (including millennials) to push boundaries, embrace adventure, and enjoy inclusive, beginner-friendly holidays.

Why Choose Millennial Group Travel With Gutsy Girls?

• Gutsy Girls runs women-only trips and weekend retreats for small groups of like-minded solo travelers
• “Safe and empowering” environment is designed for women who love adventure
• Experience-led holidays include paddleboarding, hiking, horse-riding, backcountry skiing and more, in a range of European destinations
• Trips are summer, winter and weekend-themed, and are led by expert hosts and local guides
• Gutsy Girls’ mission is to inspire women to push their boundaries with new activities, in an inclusive, fun and beginner-friendly setting
• Travelers span all age groups, including millennials

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3. Travel Talk - Best For Millennial Christmas Market Tours

Who It’s Best For

• Travel Talk specializes in global adventures and standout Christmas market tours across Europe, with groups of 12–42 people aged 18+. Trips include four-star hotels, coach/mini-bus transport, breakfast, sightseeing, and local guides.
• Travelers (“Travel Talkers”) span all backgrounds and age groups (including millennials), sharing curiosity for authentic culture. Solo travelers can room-share to avoid supplements.

Why Choose Millennial Group Travel With Travel Talk?

• Travel Talk covers global destinations but one of its specialities is Christmas market tours: unique tours connecting some of European’s most magical festive markets, including Bucharest, Salzburg, Bratislava and more
• Christmas market trips feature around 12-42 people, and are open to anyone aged 18+ (including millennials)
• Hotels on Christmas trips are of a four-star standard, and the trip price typically includes accommodation, air-con transport via coach or mini-bus, breakfast, sightseeing and the services of a local guide
• “Travel Talkers” are from all over the world, including the UK, Australia, New Zealand, USA, Canada and Europe. They share a curiosity for local, authentic culture 
• Solo travelers can skip the single supplement by sharing a room with another single traveler of the same gender

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4. Intro Travel - Best For Working Holidays For Millennials 

Who It’s Best For

• Small-group trips for 18–40s (millennials plus Gen Z), mostly solo travelers but open to friends/partners. Adventures mix culture, nightlife, relaxation, and a strong focus on friendship.
• Working Holiday Group Tours in Australia or New Zealand are a highlight, blending travel, social connection, paid work, and experience.

Why Choose Millennial Group Travel With Intro Travel?

• Intro Travel trips cater for groups of 12-16 people, typically aged between 18 and their early 40s (so millennials have the opportunity to travel with Gen Z)
• The majority are solo travelers, but friends/partners can also join groups
• With end-to-end support, the company aims to look after you “like an extended member of the family”
• Global trips feature a range of activities spanning local cultures, adventure, nightlife and more. There’s also with time to relax and do your own thing
• Friendship is a theme, with travelers “making a new crew of mates” as they explore the world together
• Working Holiday Group Tours are a brand niche, offering travelers the chance to explore, make friends, earn money and gain work experience in Australia or New Zealand; perfect for millennial nomads

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5. Backroads - Flexible Multi-Choice Tours For Millennial Travelers 

Who It’s Best For

• Backroads brings expertise in active travel worldwide, with biking, hiking, and multi-adventure trips. A new small-group collection for travelers in their 30s and 40s caters to millennials, welcoming couples, friends, and solos.
• The “you do you” ethos offers optional daily activity choices by distance, fitness, and elevation, and travelers can choose how much they engage with the group.

Why Choose Millennial Group Travel With Backroads?

• Backroads has a wealth of knowledge in active travel, from biking, hiking and multi-adventure trips in destinations all around the globe
• Trips are aimed at all types of travelers (including tours for families with kids and teens) but its new, small group trips for travelers in their 30s and 40s are perfect for millennials
• The 30s and 40s collection is designed for a mix of couples, friends and solo travelers
• The “you do you” approach is central to these trips: millennials can pick and choose from a variety of daily options
• This creates unprecedented flexibility: millennial travelers can pick a particular activity (e.g. a bike ride) according to its distance, fitness level and elevation – with multiple choices often available
• They can also choose to have as much or little group company/camaraderie as they like

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6. Intrepid Travel - Best For Good-Value Trips With Other Younger Travelers

Who It’s Best For

• Intrepid offers small group trips worldwide (max 14 people). Themes range from cruises and cycling to polar expeditions and festivals, all with a focus on positive change and community impact.
• Their 18–35 edit attracts mostly solo millennials and Gen Z, though friends and couples join too. Trips are built around local transport, simpler stays and fewer inclusions for budget-friendly travel. 

Why Choose Millennial Group Travel With Intrepid?

• Intrepid runs small group trips (max 14 travelers) all over the world, with the purpose of “creating positive change through the joys of travel”
• Travelers of all ages can choose from a wide range of community-focused, immersive trips, with themes including cruises, cycling holidays, polar expeditions, festival escapes and more
• Intrepid acters to all ages but its 18-35 edit is ideal for millennials and Gen Z: trips are designed with younger interests in mind
• 18-35 travelers often join solo (though couples and friends are also welcome). They’re united by “a friendly, open-minded and curious” attitude 
• There’s plenty of freedom. Trips feature a set itinerary but with extra time woven in for solo exploration, too
• Trips are built around local transport, simpler accommodation and have fewer inclusions, making them budget-friendly

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7. G Adventures - Immersive Hostel Experiences

Who It’s Best For

• G Adventures runs small group tours (avg. 10–12 people) worldwide. Community tourism is central, with local guides, community stays and curated add-ons (like cooking classes or yoga sessions) for a flexible, personal experience.
• Its 18-to-30-somethings range suits younger millennials, blending culture, downtime and social experiences in local bars / restaurants. A Roamies by Hostelworld partnership adds iconic hostel stays, creating extra value for this age group.

Why Choose Millennial Group Travel With G Adventures?

• G Adventures’ small group tours average 10-12 people, and span destinations around the world. Specialisms include wellness, family, National Geographic Journeys and more
• Focus is on community tourism, with local expert guides, local community stays and a format that is especially supportive of solo travelers of all backgrounds and age groups
• Flexibility is also a highlight. Travelers can personalize their tours via a range of curated add-ons, from local cooking classes to alfresco yoga and more. There’s also the option to choose trips based on whether or not you’re an experienced traveler.
• Its 18-to-30 something tours are a good choice for younger millennials, featuring a mix of culture and downtime, plus local bars and restaurants
• A collaboration with Roamies by Hostelworld opens up even more value for this age group. Budget-friendly adventures are promised, along with great locations and facilities in “some of the best hostels the world has to offer”.
  

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8. Topdeck Travel - Best For Younger Millennials Traveling With Mates

Who It’s Best For

• Topdeck runs trips for ages 18–32 (18–39 until April 2026), with groups of between 18 and 48 people exploring Europe, Asia, the Middle East, and New Zealand. Travelers are sociable, open-minded, and diverse in interests.
• Perks include 10 “friend-zone” discounts for those joining in groups of four friends or more. Trip styles include Get Social, Play & Pause, Sail & Swim. 

Why Choose Millennial Group Travel With Topdeck?

• Topdeck Travel is targeted at travelers aged 18-32 (or 18-39 for trips until April 2026). Its group sizes currently range from 18-48 people
• Travelers, including millennials, are “sociable and open-minded” but also “a mixed bunch, with different interests and travel goals”
• Destinations span Europe, the Middle East, New Zealand and Asia
• If you’re traveling as a group of four or more mates, you can take advantage of the company’s “friend-zone discount”. This means 10% off when you all book the same trip at the same time
• Topdeck also offers more deals “that will never ghost you” including money off when you travel with the company on repeat, or book multiple trips at once
• Trip leaders undergo professional LGBTQIA+ inclusion training, and adventures can be booked using the gender marker “X”. Travelers can also choose from mixed multi-share and twin-share rooms

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9. Contiki - Best For Millennial Couples Traveling In Larger Groups

Who It’s Best For

• Contiki runs 18–35s-only adventures, with group sizes from 24–53 or smaller. Travelers can pick from 200+ itineraries across 75 countries, spanning Pride trips, ski escapes, island-hopping, coach tours and more.
• While many go solo, Contiki also suits young millennial couples. They can room together, enjoy seamless logistics, and still benefit from a sociable group setting with shared activities and friendships.

Why Choose Millennial Group Travel With Contiki?

• Contiki trips are created exclusively for travelers aged between 18-35, an age group that includes younger millennials
• Group sizes vary from 24-53 travelers, while Detour trips focused on smaller, more immersive experiences with a max of 16 people
• Millennials can choose from over 200+ trips across 75 countries, including Pride trips, ski trips, coach tours, island-hopping and more
• Many Contiki travelers go solo, but young couples are also welcome on the group trips (some even use it as their honeymoon)
• Contiki trips are especially suited to couples who welcome traveling with a like-minded group, and want logistics (itineraries/hotels etc.) sorted for them
• Couples always have the option to room together, in any given trip hotel
• The format also gives couples the opportunity to make friends and try new activities within a group environment 

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10. MacBackpackers - Best For Millennial Backpackers 

Who It’s Best For

• MacBackpackers runs Scottish tours for 18–39-year-old backpackers, with most joining solo to make friends in groups of up to 29 people. The 100% Scottish-owned company covers iconic spots in the country.
• Travelers stay in hand-picked hostels, sometimes with private beaches or whiskey distilleries nearby. Emphasis is on a fun, social and immersive experience.

Why Choose Millennial Group Travel With MacBackpackers?

• MacBackpackers provides tours of Scotland for young, friendly backpackers aged between 18 and 39 years old. 
• Most join solo and are looking to make friends/have fun in maximum group sizes of 29 travelers
• The 100% Scottish-owned and guided tour company has 30 years’ experience taking young people, including millennials, around Scotland’s best-loved spots, including Loch Ness and the Isle of Skye
• Travelers stay in hand-picked hostels, with perks including private beaches and nearby whiskey distilleries
• Highlights include activities like a traditional Scottish Ceilidh, campfires, wild swimming, atmospheric storytelling and Highland hikes
  

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Group travel for millennials - category winners

🥇 Flash Pack – Best For Millennials Seeking New Friendships
Premium boutique adventures for solo travelers in small groups (max 16), tailored to ages 30–49 and 45–59. Curated “can’t-do-alone” experiences, boutique hotels, and Pack Leaders who feel like friends. 80% of Flashpackers stay in touch post-trip, making it the go-to for lasting connections and authentic travel. Luxury tours skew towards single professionals, with guaranteed small group sizes and great food experiences. 

🥈 Gutsy Girls – Best For Women-Only Millennial Trips
Women-only retreats and adventures across Europe in small groups. Safe, empowering environments for solo travelers, with activities like paddleboarding, horse-riding, yoga and skiing. Inclusive and beginner-friendly, designed to inspire women of all ages (including millennials) to embrace adventure with expert hosts and local guides.

🥉 Travel Talk – Best For Millennial Christmas Market Tours
Social trips for 12–42 people with four-star hotels, transport, breakfast and local guides included. A highlight: unique Christmas market tours linking magical spots like Bucharest, Salzburg and Bratislava. Travelers of all ages share a curiosity for authentic culture, and solos can room-share to skip supplements.

🏅 Intro Travel – Best For Working Holidays For Millennials
Small-group trips for 18–40s with a focus on friendship, culture and nightlife. Working Holiday Tours in Australia and New Zealand blend travel with paid work, social connection and experience – ideal for millennial nomads seeking both adventure and sustainability.

🏅 Backroads – Flexible Multi-Choice Tours For Millennial Travelers
Active travel experts offer hiking, biking and multi-adventure trips worldwide. A new collection for 30s–40s travelers gives millennials flexible, “you do you” itineraries: pick from multiple daily activity levels and decide how much group time you want. Perfect for couples, friends or solos seeking freedom.

🏅 Intrepid Travel – Best For Good-Value Trips With Other Younger Travelers
Small-group trips worldwide (max 14) built on local transport and simpler stays for affordability. The 18–35 edit appeals to millennials and Gen Z, with friendly, curious travelers, structured itineraries plus solo exploration time. Themes include cruises, cycling, polar expeditions and festivals.

🏅 G Adventures – Best For Budget-Friendly Hostel Experiences
Community-driven trips with small groups (10–12 avg.), local guides, and flexible add-ons like yoga or cooking classes. Its 18–30s range blends downtime, culture, and socializing in local bars. Roamies by Hostelworld expands budget-friendly options for younger millennials, with iconic hostel stays in great locations.

🏅 Topdeck Travel – Best For Younger Millennials Traveling With Mates
Trips for ages 18–32 (39 until 2026), with groups of 18–48 exploring Europe, Asia, the Middle East and New Zealand. Sociable and diverse travelers, LGBTQIA+ inclusive trip leaders, and discounts for groups of friends traveling together. Styles include Get Social, Play & Pause, and Sail & Swim.

🏅 Contiki – Best For Millennial Couples Traveling In Larger Groups
Adventures exclusively for 18–35s, with groups of 24–53 (or smaller Detour trips at 16). 200+ itineraries across 75 countries, from Pride trips to ski escapes. Popular with solos and young couples alike, who can room together and still enjoy the energy of a fun, sociable group.

🏅 MacBackpackers – Best For Millennial Backpackers
100% Scottish-owned tours for 18–39s, max 29 people. Perfect for solos seeking fun and new friends, with highlights like Loch Ness, the Isle of Skye, ceilidhs, campfires and wild swimming. Hand-picked hostels add character, some with private beaches or nearby whiskey distilleries.

All info within this article comes from publicly available website information and traveler reviews, and is accurate as of Sept 2025.

Photos: Flash Pack