Red Rocks at sunrise, near Denver Colorado

Cheap flights to Jefferson County

View €95 flight on Mon, 14 Sept 2026Opens in a new window

Popular airlines to Jefferson County

  • Frontier Airlines

  • Alaska Airlines

  • American Airlines

  • United

  • Delta

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at €95 for one-way flights and €180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 7 Nov - Mon, 9 Nov
ORD
Chicago
DEN
Denver
€180 Return, found 6 days ago
€180
Return
found 6 days ago
Select American Airlines flight, departing Sat, 7 Nov from Chicago to Denver, returning Mon, 9 Nov, priced at €180 found 6 days ago
American Airlines
Thu, 3 Sept - Wed, 9 Sept
DFW
Dallas
DEN
Denver
€202 Return, found 17 hours ago
€202
Return
found 17 hours ago
Select American Airlines flight, departing Thu, 3 Sept from Dallas to Denver, returning Wed, 9 Sept, priced at €202 found 17 hours ago
Delta
Sat, 7 Nov - Mon, 9 Nov
ORD
Chicago
DEN
Denver
€206 Return, found 6 days ago
€206
Return
found 6 days ago
Select Delta flight, departing Sat, 7 Nov from Chicago to Denver, returning Mon, 9 Nov, priced at €206 found 6 days ago
Delta
Sat, 24 Oct - Sat, 31 Oct
DAL
Dallas
DEN
Denver
€219 Return, found 22 hours ago
€219
Return
found 22 hours ago
Select Delta flight, departing Sat, 24 Oct from Dallas to Denver, returning Sat, 31 Oct, priced at €219 found 22 hours ago
United
Sat, 7 Nov - Mon, 9 Nov
ORD
Chicago
DEN
Denver
€250 Return, found 6 days ago
€250
Return
found 6 days ago
Select United flight, departing Sat, 7 Nov from Chicago to Denver, returning Mon, 9 Nov, priced at €250 found 6 days ago
JetBlue Airways
Thu, 20 Aug - Mon, 24 Aug
ORD
Chicago
DEN
Denver
€411 Return, found 1 day ago
€411
Return
found 1 day ago
Select JetBlue Airways flight, departing Thu, 20 Aug from Chicago to Denver, returning Mon, 24 Aug, priced at €411 found 1 day ago
JetBlue Airways
Tue, 25 Aug - Sat, 29 Aug
DUB
Dublin
DEN
Denver
€494 Return, found 6 days ago
€494
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 25 Aug from Dublin to Denver, returning Sat, 29 Aug, priced at €494 found 6 days ago
Iberia
Mon, 24 Aug - Mon, 7 Sept
CDG
Paris
DEN
Denver
€528 Return, found 2 days ago
€528
Return
found 2 days ago
Select Iberia flight, departing Mon, 24 Aug from Paris to Denver, returning Mon, 7 Sept, priced at €528 found 2 days ago
Icelandair
Sat, 5 Dec - Sun, 13 Dec
CDG
Paris
DEN
Denver
€559 Return, found 21 hours ago
€559
Return
found 21 hours ago
Select Icelandair flight, departing Sat, 5 Dec from Paris to Denver, returning Sun, 13 Dec, priced at €559 found 21 hours ago
British Airways
Tue, 8 Dec - Mon, 14 Dec
CDG
Paris
DEN
Denver
€575 Return, found 21 hours ago
€575
Return
found 21 hours ago
Select British Airways flight, departing Tue, 8 Dec from Paris to Denver, returning Mon, 14 Dec, priced at €575 found 21 hours ago

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.

JetBlue Airways
Tue, 25 Aug - Sat, 29 Aug
DUB
Dublin
DEN
Denver
€494 Return, found 6 days ago
€494
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 25 Aug from Dublin to Denver, returning Sat, 29 Aug, priced at €494 found 6 days ago

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. €180 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 €180 and €575. Many lucky holiday makers purchased one-way seats from Chicago (ORD) for as low as €95.
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.
How much is a plane ticket to Jefferson County?
In the last seven days, airfares to Jefferson County ranged between €180 and €575. 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.

Book with confidence

About Jefferson County

Expedia offers flights to Jefferson County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Jefferson County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Jefferson County
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