Cheap Flights To Thornton 2026

Thornton Flights as Low as $259

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$259
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $259 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$269
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $269 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$271
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $271 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$274
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $274 found 8 hours ago
Delta
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$279
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $279 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$284
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $284 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$286
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $286 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$289
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $289 found 8 hours ago
Delta
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$294
Roundtrip
found 8 hours ago
Select Delta flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $294 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$299
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $299 found 8 hours ago
United
Tue, Sep 29 - Sat, Oct 3
IAD
Washington Dulles Intl.
BTV
Burlington Intl.
$301
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Sep 29 from Washington Dulles Intl. to Burlington Intl., returning Sat, Oct 3, priced at $301 found 8 hours ago
American Airlines
United
Sat, Sep 12 - Sat, Sep 26
DCA
Ronald Reagan Washington National
BTV
Burlington Intl.
$312
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 12 from Ronald Reagan Washington National to Burlington Intl., returning Sat, Sep 26, priced at $312 found 1 day ago
American Airlines
American Airlines

Flight Travel Guide to Thornton

No matter how much you fight the travel bug, sometimes there's only one solution—to hop on the next plane to Thornton. AARP Travel Center Powered by Expedia® is here to help you cure that bug with great deals on flights and activities. With the best rates from Expedia combined with members-only discounts, AARP Travel offers members the best price in travel, guaranteed. As an AARP member, you'll get exclusive rates on car rentals and hotels, and pay no booking fees on flights.

Once you have got your trip scheduled, we'll show you a full list of deals for your route. Don't forget to look at flights to alternative airports nearby, which can help you score a lower airfare rate.

Transportation at the Thornton Airport

Once you have reserved plane tickets to Thornton with AARP Travel, you might want to book a car so you can get around the city. You can schedule Thornton car rentals under our cars tab and hop in the driver's seat as soon as you step out of the airport. If you don't need a rental car, there are other ground transportation options such as shuttle, limousine, taxi, and ride booking application services.

Thornton Activities

If you aren't sure where to start, we can help you with that too. Not to worry—there's plenty to do in this city. No matter what you decide to do with your time, you're sure to have fun in this city.

If you're looking for some fun activities to do in Thornton, make sure you look at our "Things to Do in Thornton" page for activities and excursions for the whole crew.

Where to Stay in Thornton

Thornton has lodging to choose from, so you'll have no trouble finding a place to stay close to all the things you want to see. If you need to stay close to an attraction or the airport in Thornton, check out our hotel listings page. Remember that you'll get the best for your getaway when you book your stay with us.

Planning Your Flight to Thornton

Whether you are heading out on a family annual trip, a business trip, or exploring a place you have never been before, we have the perfect getaway waiting for you. There is no better time than now to start booking that next trip. Book one of our flights today.