Moonset over Longs Peak

£283 Cheap Flights to Longmont

View £283 flight on Fri, 28 Aug 2026Opens in a new window

Popular airlines to Longmont

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Cheap round-trip flights to Longmont

Prices were available within the past 7 days and start at £283 for one-way flights and £491 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 7 Oct - Sun, 18 Oct
DUB
Dublin
DEN
Denver
£491 Return, found 4 days ago
£491
Return
found 4 days ago
Select Icelandair flight, departing Wed, 7 Oct from Dublin to Denver, returning Sun, 18 Oct, priced at £491 found 4 days ago
British Airways
Thu, 24 Sept - Thu, 8 Oct
DUB
Dublin
DEN
Denver
£509 Return, found 6 hours ago
£509
Return
found 6 hours ago
Select British Airways flight, departing Thu, 24 Sept from Dublin to Denver, returning Thu, 8 Oct, priced at £509 found 6 hours ago
Finnair
Wed, 16 Sept - Sun, 27 Sept
DUB
Dublin
DEN
Denver
£518 Return, found 19 hours ago
£518
Return
found 19 hours ago
Select Finnair flight, departing Wed, 16 Sept from Dublin to Denver, returning Sun, 27 Sept, priced at £518 found 19 hours ago
Aer Lingus
Mon, 31 Aug - Mon, 7 Sept
DUB
Dublin
DEN
Denver
£519 Return, found 2 days ago
£519
Return
found 2 days ago
Select Aer Lingus flight, departing Mon, 31 Aug from Dublin to Denver, returning Mon, 7 Sept, priced at £519 found 2 days ago
Iberia
Mon, 19 Oct - Sun, 25 Oct
DUB
Dublin
DEN
Denver
£522 Return, found 5 days ago
£522
Return
found 5 days ago
Select Iberia flight, departing Mon, 19 Oct from Dublin to Denver, returning Sun, 25 Oct, priced at £522 found 5 days ago

Frequently asked questions

What is the name of Longmont's airport?
Denver Intl. Airport (DEN) is the main airport in Longmont.
What airport is best to fly into Longmont?
Head through the exit of Denver Airport and your Longmont getaway will have begun! The city's main airport, it's located 48 kms (30 miles) from the downtown area.
How many airlines fly to Longmont?
Longmont is serviced by 24 airlines from at least 204 airports around the world.
Which airlines fly to Longmont?
Southwest Airlines, United Airlines and Frontier Airlines fly the most frequently to Longmont. The highest number of flights begin in Phoenix, with Southwest Airlines offering the most services on this route.
How many nonstop flights are there to Longmont?
Organising an exciting Longmont adventure is a walk in the park when there are 5,892 direct flights each week to pick from.
Where are the most popular flights to Longmont departing from?
Flights to Longmont from Phoenix, Dallas and Salt Lake City airports are the most in demand.
How long is the flight to Longmont Airport?
If it's Phoenix you're departing, you'll be airborne for around 1 hour and 51 minutes before you touchdown in Longmont. Terminal to terminal from Dallas generally takes 2 hours and 10 minutes and from Salt Lake City, the average flight time is 1 hour and 40 minutes.
How to book the cheapest flight to Longmont?
We all know those fortunate jet-setters who manage to grab extremely cheap fares wherever they go. Would you like to know how to do it for your Longmont holiday? Don't wait until the last minute to lock in your flight. Another good way to nab a bargain is to compare all options. If your destination has more than one airport, don't forget to research the cost of flying into a smaller terminal. Last of all, be prepared to book quickly if you find an irresistible price. It might not be available for too long. With a bit of knowledge and some good fortune, the ideal airfare can be yours.
Do you have any tips for my flight to Longmont?
We've rounded up all the info you need to make your journey as stress-free as possible. Follow our tips and you'll be zooming through airport security and having a blast in Longmont in no time at all. What to pack in your hand luggage:

  • First things first, pack in your passport, important documents, bank cards and medications. Next, you'll want some extra in-flight entertainment to while away the hours. A juicy book and a laptop filled with your favourite movies are some fantastic options. If you plan to take a quick snooze, a neck pillow and a pair of earplugs will also be useful. Finally, make room for a toothbrush and some facial wipes so you'll touchdown looking fresh and ready to go.

Do not pack the following items in your hand luggage:

  • Make sure you don't have a Swiss Army knife hiding in one of the zippers of your carry-on luggage. Other prohibited items include flammable or explosive goods, such as aerosol cans and fuel, and liquids and gels in containers with a volume of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Go for comfort over style. Prepare for changes in cabin temperature by wearing layers, and wear closed-toe, flat footwear like sneakers.
  • Deep vein thrombosis (DVT) is a potential risk on long-haul flights. It's the result of blood clotting due to poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to Longmont?
The simple answer is — be prepared. We've put together some helpful hints for a hassle-free trip through airport security. Watch out Longmont, here you come:

  • Be sure to keep your passport and travel documents handy. They're the first items you'll be asked for by security.
  • After that, both you and your carry-on bag will be X-rayed. To speed things up, take off anything that is likely to set the alarm off. Items like your belt, coat and headphones need to go through the machine.
  • All electronic devices, including your phone and tablet, are also required to be separately scanned.
  • Any gels or liquids, such as perfume or toothpaste, that you want to bring on board need to be in containers no larger than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-close bag.
  • The right choice of footwear can save you several valuable minutes. Boots and heavy shoes are often required to be removed and separately scanned. Lightweight sneakers are usually not.
  • Sharp or pointed objects (like knives and scissors) are not allowed in the cabin. They'll be seized at security, so pack them in your checked baggage.

Book with confidence

Expedia flights to Longmont

Searching for cheap flights to Longmont? No travel company presents more choices than Expedia if you're looking to compare flights to Longmont. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Colorado. Expedia provides the cheapest flights to many destinations in Colorado and you may find even greater savings if you combine your flight with a hotel stay in Longmont.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Longmont for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Longmont flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Expedia flights to Longmont

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Return price
£490

Trending flights to Longmont

Prices were available within the past 7 days and start at £283 for one-way flights and £491 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 11 Nov - Sun, 15 Nov
LGW
London
DEN
Denver
£547 Return, found 11 hours ago
£547
Return
found 11 hours ago
Select Icelandair flight, departing Wed, 11 Nov from London to Denver, returning Sun, 15 Nov, priced at £547 found 11 hours ago

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