Travel & Tours
Travel Theory

Travel & Tours

Travel Theory

About Travel Theory

Welcome to Travel Theory, a trusted Travel Agency serving travelers in Seattle, WA. With a 5.00-star rating from 22 reviews, we make planning your next trip simple, personalized, and stress-free.

★★★★★ 5.00 rating (22 reviews)
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Traveler Reviews

Expert Guides

Local knowledge & insight

Flexible Booking

Easy changes & cancellation

Safe Travel

Your security is priority

Personal Touch

Customized experiences

Travel Experiences

Guided Tours

Expert-led adventures to the world's most captivating destinations.

Accommodation

Handpicked hotels and unique stays that match your style and budget.

Custom Itineraries

Personalized travel plans designed around your interests and dreams.

Travel Theory

Your Journey Starts Here

From planning to return, we're with you every step of the way to ensure your adventure exceeds expectations.

5.00
Star Rating
22+
Happy Travelers

Traveler Reviews

Stories from our adventurers

Sarah Strausborger

Sarah Strausborger

4 years ago

Travel Theory was amazing in making our stay in Del Mar that much better ! They were able to provide us a room upgrade, extra benefits during our stay at the hotel and were a breeze to work with!!!

yesennia barajas cruz

yesennia barajas cruz

3 years ago

Casey and Kitty planned my honeymoon to Europe and it was seriously the best experience of my life! Everything was so set up to be magical and designed to make us feel so special. Casey and Kitty made sure to surprise us with a bottle of Prosecco and goodies to each of our hotels after a long day of travel. We were also upgraded every single time upon checking into our hotel, not to mention our incredible views were to die for. I posted several pictures and videos on social media and I received so many questions on which travel company we used. I still cannot get over the unforgettable experience they put so much time and effort into. 10/10 recommend.

Erica Perez

Erica Perez

7 months ago

Travel Theory created a once-in-a-lifetime itinerary for my family and I. We had an epic, memory-making, 5-star trip to Southern Italy and it was incredible. We explored Rome, Sicily and Naples, visiting off-the-beaten path locations and restaurants, and we visited regions and sites that are often missed, or overlooked, by most tourists. Casey at Travel Theory provided incredible detail, wonderful recommendations, and excellent communication every step of the way. Travel Theory's representative in Italy provided us with 24/7 support, communication, and recommendations throughout our entire trip. I'm not sure I could ever return to Italy without working with him and Travel Theory again - they made our trip a once-in-a-lifetime experience.

Eric Gruendemann

Eric Gruendemann

6 months ago

My Dear Friend and I have used Travel Theory twice this year to curate and orchestrate two "once in a lifetime" trips: To Africa and Peru/Ecuador. Their deep and personal knowledge of the regions, excellent service, great communication and ability to orchestrate great accommodations, transport, guides, services and special requests was legendary and much appreciated. Through their local agents, they were in constant watch of how things were going and if we needed anything 24/7. Their choices were very tailored and individualized to our desires and their suggestions were always on target. I would recommend Travel Theory without hesitation and we plan to use them again soon. Thank You Travel Theory!

Brian Segneri

Brian Segneri

2 years ago

This not only was our first time in Italy, but our very first time using Travel Theory and all we can say is wow! Talk about a stress free vacation! Every detail was taken care of, all we had to do was just show up and enjoy ourselves. Private transfers, personal tours, romantic lunches & dinners, they even scheduled free time for us to just take it all in at our own pace. This was truly an experience like none other. By using Travel Theory each moment felt effortless and magical. We cannot imagine another vacation where we do not use Travel Theory. Highly Recommend!

L W

L W

3 years ago

We came to Kitte and Casey a year ago to talk about ideas for our anniversary trip. They took the time to get to know us and our interests and budget for each destination. Together we chose our destination Costa Rica. With so much information online, it was a relief and pleasure to have most of our trip planned out specifically for us and our own unique interests. This is where I feel Kitte and Casey shines. It is with their expertise that we had the best and guides throughout our trip. The areas we visited and transfers between areas of the country required expert drivers where simply following google maps is not an option. Everything was private in the most luxurious vehicles to make us feel comfortable and safe. Each tour we had was private and exceeded our expectations. The guides we had very experienced and so interactive ensuring we had the best time with them while educating us on their culture. Meeting these people really made the trip for us! We learned so much life lessons seeing how passionate they were of their country and their willingness to welcome us with open arms. Knowing who to book is crucial when traveling overseas so you have the best experience and this they truly did for us! The hotel selections exceeded our expectation for a very authentic but luxury experience whereas even little things such as daily breakfasts made for a great start to our day. Every hotel knew of our anniversary and left us gifts along the way. We were truly treated as VIP guests. We felt surprised every moment of our trip which is the main reason why wanted to work with them. To be able to relax and know that every detail was taken cared of left us the opportunity to soak in every moment. They even had a personal guide meet us at the airport to introduce themselves and she too was available to us daily should we have needed anything. When there was an unexpected road closure to a mud slide, she had a backup driver sent within the hour! That type of action would’ve t

Cheryl Harten

Cheryl Harten

3 months ago

Working with Casey from Travel Theory to plan and organize our family vacation was a dream. The itinerary she created for us had the right mix of adventure and relaxation and all details were handled by the Travel Theory team.

Mike Avery

Mike Avery

5 months ago

Travel Theory crafted an absolutely amazing trip to Indonesia! We avoided the classic tourist traps and felt like we were able to see so much of the beauty of the country and the people. It was a trip we will always remember and Travel Theory put all of it together for us, including extensive transportation assistance, making our trip effortless so we could focus on the experience. Strongly recommend!!!

Alexa Segneri

Alexa Segneri

2 years ago

Trip of a lifetime! This was our first time traveling to Europe and Casey made the trip seamless. Every single transfer, tour, ticket, was ready to go and taken care of. Our itinerary allowed for us to see everything we wanted while also allowing us the freedom to explore on our own. Every tour that was booked had a knowledgeable and friendly guide who really made each experience so much more enjoyable. The hotels that were chosen for us were beautiful! We received two upgrades throughout our trip and the service was spectacular. Casey really gave us piece of mind when traveling to a new place, while planning every last detail and we will definitely be using travel theory again!

Paul Kahlon

Paul Kahlon

2 months ago

Travel Theory is simply exceptional. Casey and her team planned the perfect 20-year anniversary trip for us to Bora Bora last year, and somehow topped that with the most memorable family vacation we’ve ever taken—this time to Thailand with our two teens. Every detail was thoughtful and seamless, from flights to timing, hotels, and excursions. Chiang Mai was magical—authentic, walkable, cultural, and unforgettable. The elephant sanctuary, bike tour through local villages, Vespa tour, and attention to our vegan preferences made the experience feel deeply personal and immersive. Bangkok and the Madi Paidi Hotel were absolute highlights. The service, food, warmth, and attention to detail were unlike anything we’ve experienced anywhere in the world. Our kids are still talking about it—and already asking to go back. The staff, the breakfast, the location, the heart of the place—it set a new global standard for hospitality for our family. What truly sets Travel Theory apart is trust. When we followed Casey’s recommendations, everything exceeded expectations. On the one occasion we deviated, we learned our lesson—hotel selection is absolutely her superpower. The guides were phenomenal, flexible, kind, and went above and beyond in ways that felt human, not transactional. This was the best family trip we’ve ever taken, and it changed how we see travel. Thailand is now at the top of our list—and we wouldn’t plan a trip there (or anywhere) without Travel Theory. We are so grateful to Casey and her team for enriching our family bond in such a meaningful way.

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Payments

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Start Your Adventure

Let's plan something amazing together. Reach out and tell us about your dream trip.

Office

7511 Greenwood Ave N #1402, Seattle, WA 98103, United States

Hours

Closed · Saturday Closed
Tuesday 9 AM-5 PM
Wednesday 9 AM-5 PM
Thursday 9 AM-5 PM
Friday 9 AM-5 PM
Saturday Closed
Sunday Closed
Monday 9 AM-5 PM
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