My itinerary paperwork stated that I could have a personal item. When I checked in with the ticket agent, I checked a rolling duffel and planned to take my pack on the plane as my personal item which fit within their chart for a personal item. It also met the 14x9x22 dimensions. The ticket agent insisted that I had to check this pack and was not allowed to take it on the plane as my personal item. United charged me $40 for this pack solely based on the type of ticket I purchased which showed "Economy", but, the itinerary I received from Expedia stated that I could take a personal item on the plane which this pack clearly me United's definition size chart as a personal item. Very dissapointed that I had to incur this additional expense.
Create an account
Create your free account
OR
Sign In
Sign in to your account
OR
How much is the cheapest flight to Boulder?
Prices were available within the past 7 days and starts at $23 for one-way flights and $45 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Wed, Jun 30
LAS
McCarran Intl.to
DEN
Denver Intl.$23
Mon, Jun 28
IAH
George Bush Intercontinentalto
DEN
Denver Intl.$23
Sat, Jun 26 - Mon, Jun 28
LAS
McCarran Intl.to
DEN
Denver Intl.$45
Mon, Jun 28 - Tue, Jun 29
IAH
George Bush Intercontinentalto
DEN
Denver Intl.$45
Tue, Apr 26
MCI
Kansas City Intl.to
DEN
Denver Intl.$45
Tue, Oct 5
AUS
Austin-Bergstrom Intl.to
DEN
Denver Intl.$55
Sun, Jul 4
DFW
Dallas-Fort Worth Intl.to
DEN
Denver Intl.$63
Wed, Dec 1 - Wed, Dec 8
AUS
Austin-Bergstrom Intl.to
DEN
Denver Intl.$96
Thu, Sep 16 - Thu, Sep 23
MCI
Kansas City Intl.to
DEN
Denver Intl.$96
Wed, Sep 8 - Wed, Sep 15
DFW
Dallas-Fort Worth Intl.to
DEN
Denver Intl.$110
Wed, Jun 30
LAS
McCarran Intl.to
DEN
Denver Intl.$23
Mon, Jun 28
IAH
George Bush Intercontinentalto
DEN
Denver Intl.$23
Tue, Apr 26
MCI
Kansas City Intl.to
DEN
Denver Intl.$45
Tue, Oct 5
AUS
Austin-Bergstrom Intl.to
DEN
Denver Intl.$55
Sun, Jul 4
DFW
Dallas-Fort Worth Intl.to
DEN
Denver Intl.$63
Sat, Jun 26 - Mon, Jun 28
LAS
McCarran Intl.to
DEN
Denver Intl.$45
Mon, Jun 28 - Tue, Jun 29
IAH
George Bush Intercontinentalto
DEN
Denver Intl.$45
Wed, Dec 1 - Wed, Dec 8
AUS
Austin-Bergstrom Intl.to
DEN
Denver Intl.$96
Thu, Sep 16 - Thu, Sep 23
MCI
Kansas City Intl.to
DEN
Denver Intl.$96
Wed, Sep 8 - Wed, Sep 15
DFW
Dallas-Fort Worth Intl.to
DEN
Denver Intl.$110
Reviews from verified customers
Find Your Flights to Boulder DEN
Cheap flights to Boulder(DEN)
Get started finding a cheap flight to Boulder on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.
We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Boulder.
Roundtrip prices range from $45 - $110, and one-ways to Boulder start as low as $23.
Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.
Airlines that fly to Boulder (DEN)
You have several options for which airline you choose to travel with to Boulder. There are 10 airlines flying into DEN: Spirit Airlines, Frontier Airlines.
Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.
For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare.
Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.
Find the best deals
At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Boulder (DEN) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to DEN in June and in June for one-ways.
Cancellation & flexibility
To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.
Get up to 100% off your flight to Boulder when booking a Flight + Hotel
Heading to Boulder? Explore Boulder with Expedia's Travel Guides to find the best hotels, vacation packages, car rental deals and more!
Trending flights to Boulder
Prices were available within the past 7 days and starts at $23 for one-way flights and $45 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Wed, Jun 30
LAS
McCarran Intl.to
DEN
Denver Intl.$23
Sat, Jun 26 - Mon, Jun 28
LAS
McCarran Intl.to
DEN
Denver Intl.$45
Wed, Jun 30
LAS
McCarran Intl.to
DEN
Denver Intl.$23
Sat, Jun 26 - Mon, Jun 28
LAS
McCarran Intl.to
DEN
Denver Intl.$45
Top Flight Destinations
- Flights to Las Vegas
- Flights to Orlando
- Flights to Miami
- Flights to New York
- Flights to Key West
- Flights to Fort Lauderdale
- Flights to Myrtle Beach
- Flights to San Diego
- Flights to Los Angeles
- Flights to Atlanta
- Flights to Austin
- Flights to Honolulu
- Flights to Clearwater Beach
- Flights to Chicago
- Flights to Phoenix
- Flights to San Antonio
- Flights to Nashville
- Flights to Panama City Beach
- Flights to Destin
- Flights to Houston
Top Flight Destinations In the World
- Flights to Philippines
- Flights to France
- Flights to Canada
- Flights to China
- Flights to Australia
- Flights to Russia
- Flights to India
- Flights to Sweden
- Flights to Brazil
- Flights to Spain
- Flights to Greece
- Flights to United States of America
- Flights to United Kingdom
- Flights to Italy
- Flights to Argentina
- Flights to Thailand
- Flights to Colombia
- Flights to Switzerland
- Flights to Norway
- Flights to Turkey
Flights to Cities Near Boulder
Expedia's Latest Trends
-
- Honeymoon Resorts & Hotels in Southwest Colorado
- Hotels with Kitchenettes in Alamosa
- Luxury Hotels in Colorado Western Slope
- Pet-friendly Hotels in Alamosa
- Winery Hotels in Colorado Western Slope
- Hotels in La Junta
- Hotels near San Isabel National Forest
- Casinos in Colorado Western Slope
- Hotels in Alamosa
- Hotels near Rocky Mountain National Park
- Resorts & Hotels with Spas in Southwest Colorado
- Hotels in Southwest Colorado
- Hotels in Northwest Colorado
- Hotels near Ski Cooper
- Gay friendly Hotels in Southwest Colorado
- Luxury Hotels in Southwest Colorado
- Waterpark Hotels in Alamosa
- Cheap Hotels in Alamosa
- Luxury Hotels in Alamosa
1
Expedia, Inc. is not responsible for content on external Web sites. © 2021 Expedia, Inc, an Expedia Group Company. All rights reserved.
