HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billund

$352+ Cheap flights from Seattle (SEA) to Billund (BLL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Billund with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Billund

Cheapest flights from Seattle to Billund
Explore the most affordable flight options available from Seattle to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:45 pm
SEA
-
BLL
1 stop14h 45m
Delta
Mon 5/1111:45 am
BLL
-
SEA
1 stop32h 57m
Delta
Deal found 3/22$609
This KLM deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:40 pm
SEA
-
BLL
1 stop31h 40m
Multiple Airlines
Sun 5/102:30 pm
BLL
-
SEA
1 stop30h 12m
Multiple Airlines
Deal found 3/19$646
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:00 pm
SEA
-
BLL
1 stop14h 20m
United Airlines
Thu 11/126:30 am
BLL
-
SEA
1 stop14h 40m
United Airlines
Deal found 3/17$707
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/72:00 pm
SEA
-
BLL
1 stop14h 20m
United Airlines
Fri 12/116:30 am
BLL
-
SEA
1 stop14h 40m
United Airlines
Deal found 3/19$708
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:00 am
SEA
-
BLL
2 stops22h 00m
United Airlines
Mon 5/116:00 am
BLL
-
SEA
2 stops22h 48m
United Airlines
Deal found 3/22$717
This Air France deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:50 pm
SEA
-
BLL
1 stop18h 35m
Air France
Thu 7/910:15 am
BLL
-
SEA
1 stop15h 05m
Air France
Deal found 3/22$719
This Air France deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:55 pm
SEA
-
BLL
1 stop14h 35m
Air France
Tue 7/76:00 am
BLL
-
SEA
1 stop14h 33m
Air France
Deal found 3/18$730

Find flight deals from Seattle to Billund

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Billund (BLL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$609
(Delta)

One-way from

$352
(oojo)

Popular in

January

Cheapest in

February

Average price

$636
Provider with most accurate pricing for Seattle/Tacoma Intl-Billund flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Billund flights.
Search Deals
From Seattle/Tacoma Intl to Billund
Search Deals
One-way flight from Seattle/Tacoma Intl to Billund
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Billund that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Seattle to Billund that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 5/4

2:10 pm-2:10 pm

1 stop15h 00m

Billund

Mon 5/11

6:00 am-12:20 pm

1 stop15h 20m

$708

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 5/5

2:10 pm-5:55 pm

1 stop18h 45m

Billund

Tue 5/12

6:05 am-12:20 pm

1 stop15h 15m

$708

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 5/3

2:10 pm-6:00 pm

1 stop18h 50m

Billund

Sun 5/10

6:00 am-9:50 am

2 stops36h 50m

$708

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 5/7

7:00 am-2:00 pm

2 stops22h 00m

Billund

Mon 5/11

6:00 am-7:48 pm

2 stops22h 48m

$717

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

6:50 pm-10:25 pm

1 stop18h 35m

Billund

Thu 7/9

10:15 am-4:20 pm

1 stop15h 05m

$719

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 5/20

9:30 am-11:00 am

2 stops16h 30m

Billund

Mon 5/25

6:00 am-11:42 am

1 stop14h 42m

$844

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

1:30 pm-11:20 am

1 stop12h 50m

Billund

Thu 7/9

12:00 pm-11:26 pm

2 stops20h 26m

$854

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 5/21

1:00 pm-9:50 am

2 stops35h 50m

Billund

Tue 6/2

6:05 am-2:36 pm

3 stops41h 31m

$925
Cheapest one-way

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 7/11

3:06 pm-10:50 am

2 stops34h 44m

$352

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 7/11

6:30 am-2:10 pm

3 stops46h 40m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 15 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Seattle-Billund flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Billund flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Billund flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Billund flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Billund flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Billund

Have a flexible travel schedule? Discover the best time to fly to Billund from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Billund

What is the cheapest month to book a flight from Seattle to Billund?

Currently, December is the cheapest month in which you can book a flight from Seattle to Billund (average of $332). Flying from Seattle to Billund in January is currently the most expensive (average of $873). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Billund

Get insights into the airlines that provide service to Billund. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Billund. Reviews last updated March 22, 2026.
Peruse reviews from past customers who have flown with Delta and Lufthansa from Seattle to Billund to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,317 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,317 reviews
Delta
7.9
Good
8,317 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,862 reviews
Delta
7.9
Good
8,317 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Billund. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Billund?

    Departing from Seattle to Billund will take you 15h. The distance from Seattle to Billund is about 4771 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Billund round-trip?

    Delta, at $421, was found to be the cheapest airline from Seattle to Billund. An alternate airline flying to your destination would be Lufthansa. Delta is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Billund that include hotel bookings?

    Yes. In addition to deals on Seattle to Billund flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Billund?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Billund.

  • Can I find deals for business class flights from Seattle to Billund?

    Yes. Cheapflights offers flight deals from Seattle to Billund by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Billund?

    Currently, December is the cheapest month in which you can book a flight from Seattle to Billund (average of $332). Flying from Seattle to Billund in January is currently the most expensive (average of $873). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Billund?

Book flights to Billund if you plan to visit one of these locations
Vejle

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Billund

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Copenhagen flights
Portland to Copenhagen flights
Spokane to Copenhagen flights

Top 2 airlines flying from Seattle to Billund

Discover the top 2 airlines that operate flights from Seattle to Billund. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$421Average$822FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$597Average$762FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.