$24 Cheap Flights to Longmont , CO

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How much is the cheapest flight to Longmont?

Prices were available within the past 7 days and start at $24 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Jun 3 - Tue, Jun 4
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$48 Roundtrip, found 2 hours ago
$48
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Jun 3 from Dallas-Fort Worth Intl. to Denver Intl., returning Tue, Jun 4, priced at $48 found 2 hours ago
Frontier Airlines
Sat, Aug 24 - Sat, Aug 24
ORD
O'Hare Intl.
DEN
Denver Intl.
$63 Roundtrip, found 12 hours ago
$63
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sat, Aug 24 from O'Hare Intl. to Denver Intl., returning Sat, Aug 24, priced at $63 found 12 hours ago
Frontier Airlines
Tue, Aug 20 - Tue, Aug 27
LAX
Los Angeles Intl.
DEN
Denver Intl.
$68 Roundtrip, found 9 hours ago
$68
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, Aug 20 from Los Angeles Intl. to Denver Intl., returning Tue, Aug 27, priced at $68 found 9 hours ago
Frontier Airlines
Sat, Aug 24 - Sat, Sep 14
LGA
LaGuardia
DEN
Denver Intl.
$112 Roundtrip, found 18 hours ago
$112
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sat, Aug 24 from LaGuardia to Denver Intl., returning Sat, Sep 14, priced at $112 found 18 hours ago
Delta
Tue, Aug 27 - Tue, Aug 27
DAL
Love Field
DEN
Denver Intl.
$170 Roundtrip, found 3 days ago
$170
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Aug 27 from Love Field to Denver Intl., returning Tue, Aug 27, priced at $170 found 3 days ago

Find Your Flights to Longmont DEN

Cheap flights to Longmont (DEN)

Get started finding a cheap flight to Longmont 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 Longmont.

Roundtrip prices range from $48 - $170, and one-ways to Longmont start as low as $24.

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 Longmont (DEN)

You have several options for which airline you choose to travel with to Longmont. There are 10 airlines flying into DEN: Frontier Airlines, Delta. 

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 Longmont (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.

Frequently asked questions

How do I find cheap flights to Longmont that have flexible change policies?
Search for your bargain flights to Longmont, then tick the “No change fee” box under the “Flexible change policies” filter. It’s that simple. We get that travel plans change and flexibility is essential, so book with confidence with Expedia.
How can I book the cheapest flight to Longmont?
If you’d love to have some extra money to play with during your stay in Longmont, it’s wise to book your ticket in advance. Prices typically increase close to the departure date. Also find out if there is more than one airport at your destination. Airfares can differ depending on which airport you land at. Don’t forget to compare prices across airlines and try to be flexible with your dates. Another tip? Be ready to act fast. If you come across an incredible deal, grab it! Currently, one of the cheapest one-way tickets to Longmont costs $24. This is for a flight leaving from Phoenix in June.
Which day of the week is the best day to buy a plane ticket to Longmont?
According to our research, Sundays are the best day to purchase a plane ticket. Prices do fluctuate with demand though, so it’s wise to check prices regularly. Want another tip? Start looking at flights to Longmont as soon as you’ve selected your travel dates and be ready to book when you see a bargain. The optimal booking window ranges from 21 days to around 45 days out from departure, so the earlier you begin looking, the greater your chances of scoring an epic deal! Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Longmont?
Get off the plane at Denver Intl. Airport (DEN) and you’ll find yourself 50 mi from the center of town. Centennial Airport also welcomes many travelers to Longmont. You’ll find it 70 mi from the city center.
Which airlines fly to Longmont?
There are 18 airlines connecting Longmont with 200 airports around the world. One of the best choices is United Airlines, which operates the largest number of flights to Longmont from Phoenix. Another popular option is Frontier Airlines.
How many nonstop flights are there to Longmont?
With approximately 6,343 nonstop flights running every week, you’ll be hitting the tarmac in Longmont before you can ask, “Are we there yet?”
Where are the most popular flights to Longmont departing from?
Travelers frequently depart from Phoenix, Chicago and Dallas airports when heading to Longmont.
Do you have any tips for my flight to Longmont?

  • Wherever your journey is taking you, flying can be a wonderful experience if you’re properly prepared. First, pack your travel documents, passport and medications. Next, throw in some in-flight entertainment to while away the hours. The latest bestseller and a tablet filled with the latest movies are a couple of good options. If you want to nap, a quality neck pillow and headphones will also come in handy.
  • Don’t forget there’s also a list of prohibited items for your hand luggage which can differ between airlines. As a general rule, avoid carrying anything sharp, flammable or explosive. This includes things like box cutters, razor blades, flares and aerosol cans. Sporting equipment like ski poles, baseball bats and objects that could harm passengers, such as swords and batons, are also banned from the cabin.

What to wear on a flight:

  • Whether traveling long or short-haul, layering up is key to a comfortable flight. Opt for loose, breathable fabrics that will keep you fresh and pack a sweater for any variations in cabin temperatures. Keep your feet happy in a pair of flat shoes or sneakers.
  • The condition known as deep vein thrombosis (DVT) is a risk on long-haul flights. It’s the result of blood clotting caused by inactivity and poor circulation. Strolling up and down the aisle and doing foot and leg stretches while seated can prevent it developing. Wearing compression socks or tights can also help to lower your risk.

How can I get a cheap last-minute flight to Longmont?
The key to tracking down a cheap, spur-of-the-moment flight to Longmont is to remain flexible. You can boost your chances of scoring a fantastic deal if you’re not tied to specific travel dates, flight times and airlines. Also compare the prices of flying out of and into alternative airports if that’s an option.
Where can I learn more about changing or canceling my flight to Longmont?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to Longmont information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
$62

Trending flights to Longmont

Prices were available within the past 7 days and start at $24 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Jun 3 - Tue, Jun 4
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$48 Roundtrip, found 2 hours ago
$48
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Jun 3 from Dallas-Fort Worth Intl. to Denver Intl., returning Tue, Jun 4, priced at $48 found 2 hours ago
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