Red Rocks at sunrise, near Denver Colorado

Cheap Flights to Jefferson County from ₩150,500

View ₩150,500 flight on Wed, Jul 22, 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Jefferson County

  • Frontier Airlines

  • American Airlines

  • United

  • Delta

  • Alaska Airlines

  • Southwest Airlines

  • JetBlue Airways

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How much is the cheapest flight to Jefferson County?

Prices were available within the past 7 days and start at ₩150,500 for one-way flights and ₩302,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 5 - Wed, Aug 12
ATL
Atlanta
DEN
Denver
₩302,500 Roundtrip, found 3 days ago
₩302,500
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 5 from Atlanta to Denver, returning Wed, Aug 12, priced at ₩302,500 found 3 days ago
Delta
Thu, Oct 22 - Sat, Oct 31
PHX
Phoenix
DEN
Denver
₩373,700 Roundtrip, found 21 hours ago
₩373,700
Roundtrip
found 21 hours ago
Select Delta flight, departing Thu, Oct 22 from Phoenix to Denver, returning Sat, Oct 31, priced at ₩373,700 found 21 hours ago
United
Wed, Aug 5 - Wed, Aug 12
ATL
Atlanta
DEN
Denver
₩440,600 Roundtrip, found 3 days ago
₩440,600
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 5 from Atlanta to Denver, returning Wed, Aug 12, priced at ₩440,600 found 3 days ago
American Airlines
Thu, Oct 22 - Sat, Oct 31
PHX
Phoenix
DEN
Denver
₩466,000 Roundtrip, found 21 hours ago
₩466,000
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Oct 22 from Phoenix to Denver, returning Sat, Oct 31, priced at ₩466,000 found 21 hours ago
Delta
Sat, Aug 1 - Wed, Aug 5
SFO
San Francisco
DEN
Denver
₩473,100 Roundtrip, found 8 hours ago
₩473,100
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Aug 1 from San Francisco to Denver, returning Wed, Aug 5, priced at ₩473,100 found 8 hours ago
Delta
Mon, Aug 17 - Thu, Aug 20
BWI
Baltimore
DEN
Denver
₩482,700 Roundtrip, found 2 days ago
₩482,700
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Aug 17 from Baltimore to Denver, returning Thu, Aug 20, priced at ₩482,700 found 2 days ago
Air Canada
Thu, Jan 28 - Fri, Feb 5
ICN
Seoul
DEN
Denver
₩1,672,800 Roundtrip, found 1 day ago
₩1,672,800
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Jan 28 from Seoul to Denver, returning Fri, Feb 5, priced at ₩1,672,800 found 1 day ago
Alaska Airlines
Thu, Sep 10 - Fri, Sep 18
ICN
Seoul
DEN
Denver
₩1,941,400 Roundtrip, found 2 days ago
₩1,941,400
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Seoul to Denver, returning Fri, Sep 18, priced at ₩1,941,400 found 2 days ago
Turkish Airlines
Mon, Jan 25 - Fri, Feb 5
ICN
Seoul
DEN
Denver
₩1,971,200 Roundtrip, found 6 days ago
₩1,971,200
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Mon, Jan 25 from Seoul to Denver, returning Fri, Feb 5, priced at ₩1,971,200 found 6 days ago
Korean Air
Tue, Nov 3 - Tue, Nov 10
ICN
Seoul
DEN
Denver
₩2,041,400 Roundtrip, found 1 day ago
₩2,041,400
Roundtrip
found 1 day ago
Select Korean Air flight, departing Tue, Nov 3 from Seoul to Denver, returning Tue, Nov 10, priced at ₩2,041,400 found 1 day ago

Trending flights to Jefferson County

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

Air Canada
Thu, Jan 28 - Fri, Feb 5
ICN
Seoul
DEN
Denver
₩1,672,800 Roundtrip, found 1 day ago
₩1,672,800
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Jan 28 from Seoul to Denver, returning Fri, Feb 5, priced at ₩1,672,800 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. ₩302,500 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 ₩302,500 and ₩2,041,400. Many lucky vacationers purchased one-way seats from Atlanta (ATL) for as low as ₩150,500.
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 traveling 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 ₩302,500 and ₩2,041,400. 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 50ºF and 70ºF.
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 traveler'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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