£345 Cheap Flights to Jefferson County

Popular airlines to Jefferson County

  • Frontier Airlines

    Frontier Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • JetBlue Airways

    JetBlue Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at £345 for one-way flights and £344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Fri, 12 Sep - Mon, 15 Sep
DUB
Dublin
DEN
Denver
£344 Return, found 2 hours ago
£344
Return
found 2 hours ago
Select Aer Lingus flight, departing Fri, 12 Sep from Dublin to Denver, returning Mon, 15 Sep, priced at £344 found 2 hours ago
American Airlines
Tue, 23 Sep - Mon, 6 Oct
DUB
Dublin
DEN
Denver
£374 Return, found 19 hours ago
£374
Return
found 19 hours ago
Select American Airlines flight, departing Tue, 23 Sep from Dublin to Denver, returning Mon, 6 Oct, priced at £374 found 19 hours ago
British Airways
Thu, 4 Sep - Sun, 12 Oct
DUB
Dublin
DEN
Denver
£380 Return, just found
£380
Return
just found
Select British Airways flight, departing Thu, 4 Sep from Dublin to Denver, returning Sun, 12 Oct, priced at £380 just found
Iberia
Wed, 3 Sep - Sun, 19 Oct
DUB
Dublin
DEN
Denver
£394 Return, just found
£394
Return
just found
Select Iberia flight, departing Wed, 3 Sep from Dublin to Denver, returning Sun, 19 Oct, priced at £394 just found
Air France
Tue, 23 Sep - Mon, 6 Oct
DUB
Dublin
DEN
Denver
£402 Return, found 19 hours ago
£402
Return
found 19 hours ago
Select Air France flight, departing Tue, 23 Sep from Dublin to Denver, returning Mon, 6 Oct, priced at £402 found 19 hours ago
KLM
Tue, 23 Sep - Mon, 6 Oct
DUB
Dublin
DEN
Denver
£409 Return, found 19 hours ago
£409
Return
found 19 hours ago
Select KLM flight, departing Tue, 23 Sep from Dublin to Denver, returning Mon, 6 Oct, priced at £409 found 19 hours ago
Icelandair
Sat, 30 Aug - Thu, 4 Sep
DUB
Dublin
DEN
Denver
£409 Return, found 4 days ago
£409
Return
found 4 days ago
Select Icelandair flight, departing Sat, 30 Aug from Dublin to Denver, returning Thu, 4 Sep, priced at £409 found 4 days ago
Aer Lingus
Fri, 5 Sep - Fri, 12 Sep
LHR
London
DEN
Denver
£412 Return, just found
£412
Return
just found
Select Aer Lingus flight, departing Fri, 5 Sep from London to Denver, returning Fri, 12 Sep, priced at £412 just found
Aer Lingus
Thu, 4 Sep - Wed, 17 Sep
AMS
Amsterdam
DEN
Denver
£412 Return, found 1 hour ago
£412
Return
found 1 hour ago
Select Aer Lingus flight, departing Thu, 4 Sep from Amsterdam to Denver, returning Wed, 17 Sep, priced at £412 found 1 hour ago
Icelandair
Fri, 14 Nov - Sat, 29 Nov
LGW
London
DEN
Denver
£426 Return, found 3 hours ago
£426
Return
found 3 hours ago
Select Icelandair flight, departing Fri, 14 Nov from London to Denver, returning Sat, 29 Nov, priced at £426 found 3 hours ago

Top tips for booking flights to Jefferson County from UK

Get ready to fly to Jefferson County

Prepare your luggage and book your flights to Jefferson County with Expedia. We offer a seamless flight booking experience, with a wide range of Jefferson County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Jefferson County in 2025, we are always available to assist you. Book your flights to Jefferson County today and let the adventure begin!

Find the best tickets to Jefferson County

To find some of the best tickets to Jefferson County in 2025, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Jefferson County or last-minute flights to Jefferson County, you can filter and sort your search results, making it easy to find the ideal flight to Jefferson County.

Airlines fly to Jefferson County

There are 20 different airlines that fly to Jefferson County including some of the most trusted names in the business. To book flights to Jefferson County with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Jefferson County plane tickets.

Find the cheapest flights to Jefferson County

By booking early you may find some of the best deals for Jefferson County flights from the UK, including Jefferson County direct flights. You can usually find affordable and cheap flights to Jefferson County, whether one-way from £345 or round-trip from £344, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Jefferson County

Try searching for different Jefferson County airports with Expedia to find some of the cheapest flights to Jefferson County. Flights from Dublin (DUB) to Denver (DEN) usually have the lowest price from £345.

Why book your flights to Jefferson County with Expedia

Expedia offers great deals on Jefferson County air fares from £345 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Jefferson County from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Jefferson County Flights Information

Airlines serving
Aer Lingus, WestJet, American Airlines, British Airways, Iberia, Air France, JetBlue Airways, KLM, Icelandair, TAP Portugal
Roundtrip price
from £344

Frequently asked questions

How do I find cheap flights to Jefferson County that have flexible change policies?
We know that travel arrangements can change from one minute to the next, so booking a flexible ticket with Expedia is always a smart move. Simply tick the "No change fee" box under the "Flexible change policies" filter. Your well-priced and flexible flight to Jefferson County is just a few clicks away.
Which airlines fly to Jefferson County?
Dig out your passport, pack your bags and choose from these leading airlines that operate flights in or near Jefferson County:

  • United Airlines - 13,033 flights to or near Jefferson County each month, including 13,033 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,339 flights to or near Jefferson County each month, including 6,339 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,967 flights to or near Jefferson County each month, including 1,967 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Jefferson County?
You'll always walk away with an awesome deal with Expedia, but our "flexible dates" feature makes it even easier. Enter your preferred flight date, then check the flexible dates box above to compare prices for nearby days. £344 was the best price for a flight to Jefferson County in the last seven days.
How much is a flight to Jefferson County?
There were lots of cheap fares up for grabs in the last seven days, with the price of a return flight to Jefferson County varying between £344 and £567. Many lucky holiday makers purchased one-way seats from Dublin (DUB) for as low as £345.
What are the most popular airports to fly into in Jefferson County?
Denver Intl. Airport (DEN) is the primary gateway for many hoping to explore Jefferson County. Approximately 24,249 monthly flights touch down here.
When is the cheapest time to fly to Jefferson County?
If you'd prefer to spend your money getting to know Jefferson County rather than on your journey there, leave early in the week. The most economical day to travel is generally Tuesday, with Monday running a close second. With many people travelling on weekends, Saturday tends to have the highest airfares.
How much is a plane ticket to Jefferson County?
In the last seven days, airfares to Jefferson County ranged between £344 and £567. The early bird catches the worm, so grab a terrific deal today.
What is the best time to go to Jefferson County?
If you'd love to experience Jefferson County's most populous city when it's buzzing, head for Pine sometime in March, May and July. Similar to most destinations in the Northern Hemisphere, summertime here begins June 20, with average temperatures ranging between 10ºC and 21ºC.
What months are the cheapest to book a flight to Jefferson County?
Reserve your ticket in February to enjoy low-priced flights to Jefferson County. The month of December is generally the most expensive time to purchase a fare.

Trending flights to Jefferson County

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

Aer Lingus
Fri, 5 Sep - Fri, 12 Sep
LHR
London
DEN
Denver
£412 Return, just found
£412
Return
just found
Select Aer Lingus flight, departing Fri, 5 Sep from London to Denver, returning Fri, 12 Sep, priced at £412 just found
*Available to Expedia members.