Red Rocks at sunrise, near Denver Colorado

Flight Destinations in Jefferson County

View ฿2,560 flight on Mon, 19 Oct 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 ฿2,560 for one-way flights and ฿5,110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 19 Oct - Wed, 4 Nov
SEA
Seattle
DEN
Denver
฿5,110 Return, found 9 hours ago
฿5,110
Return
found 9 hours ago
Select Delta flight, departing Mon, 19 Oct from Seattle to Denver, returning Wed, 4 Nov, priced at ฿5,110 found 9 hours ago
Delta
Sat, 5 Sept - Thu, 10 Sept
BOS
Boston
DEN
Denver
฿7,280 Return, found 10 hours ago
฿7,280
Return
found 10 hours ago
Select Delta flight, departing Sat, 5 Sept from Boston to Denver, returning Thu, 10 Sept, priced at ฿7,280 found 10 hours ago
United
Mon, 19 Oct - Wed, 4 Nov
SEA
Seattle
DEN
Denver
฿8,110 Return, found 9 hours ago
฿8,110
Return
found 9 hours ago
Select United flight, departing Mon, 19 Oct from Seattle to Denver, returning Wed, 4 Nov, priced at ฿8,110 found 9 hours ago
American Airlines
Sat, 5 Sept - Thu, 10 Sept
BOS
Boston
DEN
Denver
฿8,640 Return, found 10 hours ago
฿8,640
Return
found 10 hours ago
Select American Airlines flight, departing Sat, 5 Sept from Boston to Denver, returning Thu, 10 Sept, priced at ฿8,640 found 10 hours ago
American Airlines
Mon, 19 Oct - Wed, 4 Nov
PAE
Seattle
DEN
Denver
฿13,305 Return, found 9 hours ago
฿13,305
Return
found 9 hours ago
Select American Airlines flight, departing Mon, 19 Oct from Seattle to Denver, returning Wed, 4 Nov, priced at ฿13,305 found 9 hours ago
Icelandair
Thu, 3 Sept - Wed, 16 Sept
LGW
London
DEN
Denver
฿28,970 Return, found 16 hours ago
฿28,970
Return
found 16 hours ago
Select Icelandair flight, departing Thu, 3 Sept from London to Denver, returning Wed, 16 Sept, priced at ฿28,970 found 16 hours ago
Korean Air
Thu, 1 Oct - Fri, 16 Oct
BKK
Bangkok
DEN
Denver
฿29,183 Return, found 1 day ago
฿29,183
Return
found 1 day ago
Select Korean Air flight, departing Thu, 1 Oct from Bangkok to Denver, returning Fri, 16 Oct, priced at ฿29,183 found 1 day ago
Air Canada
Mon, 22 Mar - Wed, 21 Apr
BKK
Bangkok
DEN
Denver
฿29,255 Return, found 5 days ago
฿29,255
Return
found 5 days ago
Select Air Canada flight, departing Mon, 22 Mar from Bangkok to Denver, returning Wed, 21 Apr, priced at ฿29,255 found 5 days ago
Lufthansa
Thu, 3 Sept - Wed, 16 Sept
LHR
London
DEN
Denver
฿31,035 Return, found 16 hours ago
฿31,035
Return
found 16 hours ago
Select Lufthansa flight, departing Thu, 3 Sept from London to Denver, returning Wed, 16 Sept, priced at ฿31,035 found 16 hours ago
Lufthansa
Thu, 3 Sept - Wed, 16 Sept
LHR
London
DEN
Denver
฿31,795 Return, found 16 hours ago
฿31,795
Return
found 16 hours ago
Select Lufthansa flight, departing Thu, 3 Sept from London to Denver, returning Wed, 16 Sept, priced at ฿31,795 found 16 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.

Korean Air
Thu, 1 Oct - Fri, 16 Oct
BKK
Bangkok
DEN
Denver
฿29,183 Return, found 1 day ago
฿29,183
Return
found 1 day ago
Select Korean Air flight, departing Thu, 1 Oct from Bangkok to Denver, returning Fri, 16 Oct, priced at ฿29,183 found 1 day 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. ฿5,110 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 ฿5,110 and ฿31,795. Many lucky holiday makers purchased one-way seats from Seattle (SEA) for as low as ฿2,560.
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 ฿5,110 and ฿31,795. 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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