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Billund

$531+ Cheap flights from Seattle (SEA) to Billund (BLL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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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 29, 2026.

This Ticket deal was found by Cheapflights users on 3/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:40 pm
SEA
-
BLL
1 stop18h 45m
Multiple Airlines
Fri 4/176:00 am
BLL
-
SEA
1 stop14h 45m
Multiple Airlines
Deal found 3/28$531
This Delta deal was found by Cheapflights users on 3/28. 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.
Mon 4/136:00 am
SEA
-
BLL
2 stops18h 35m
Delta
Fri 4/176:00 am
BLL
-
SEA
1 stop14h 45m
Delta
Deal found 3/28$566
This KLM deal was found by Cheapflights users on 3/28. 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.
Mon 6/291:30 pm
SEA
-
BLL
1 stop17h 55m
Multiple Airlines
Thu 7/96:00 am
BLL
-
SEA
1 stop14h 33m
Multiple Airlines
Deal found 3/28$650
This Delta deal was found by Cheapflights users on 3/28. 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.
Mon 6/291:30 pm
SEA
-
BLL
1 stop12h 50m
Delta
Thu 7/912:00 pm
BLL
-
SEA
2 stops20h 58m
Delta
Deal found 3/28$661
This Air France deal was found by Cheapflights users on 3/29. 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 3/29$685
This British Airways deal was found by Cheapflights users on 3/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:30 pm
SEA
-
BLL
1 stop13h 15m
British Airways
Tue 4/283:20 pm
BLL
-
SEA
1 stop29h 15m
British Airways
Deal found 3/25$763
This Scandinavian Airlines deal was found by Cheapflights users on 3/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:55 pm
SEA
-
BLL
1 stop33h 40m
Scandinavian Airlines
Thu 9/109:05 pm
BLL
-
SEA
1 stop25h 40m
Scandinavian Airlines
Deal found 3/28$766
This United Airlines deal was found by Cheapflights users on 3/28. 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 9/610:47 pm
SEA
-
BLL
2 stops26h 18m
United Airlines
Thu 9/106:00 am
BLL
-
SEA
1 stop14h 55m
United Airlines
Deal found 3/28$794

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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$531
(Ticket)

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
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
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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 29, 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

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 4/13

6:00 am-9:35 am

2 stops18h 35m

Billund

Fri 4/17

2:20 pm-11:59 pm

2 stops18h 39m

$577
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

1:30 pm-4:25 pm

1 stop17h 55m

Billund

Thu 7/9

6:00 am-11:33 am

1 stop14h 33m

$650

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-11:58 pm

2 stops20h 58m

$661

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

$720

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/1

6:50 pm-10:25 pm

1 stop18h 35m

Billund

Wed 7/1

4:15 pm-11:33 am

1 stop28h 18m

$720

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 4/24

1:30 pm-11:45 am

1 stop13h 15m

Billund

Tue 4/28

3:20 pm-11:35 am

1 stop29h 15m

$763

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 9/6

3:55 pm-10:35 am

1 stop33h 40m

Billund

Thu 9/10

9:05 pm-1:45 pm

1 stop25h 40m

$766

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 9/6

10:47 pm-10:05 am

2 stops26h 18m

Billund

Thu 9/10

6:00 am-11:55 am

1 stop14h 55m

$794

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 4/24

5:00 am-6:10 pm

2 stops28h 10m

Billund

Tue 4/28

10:40 am-10:39 am

2 stops32h 59m

$871
Cheapest one-way

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 6/13

7:10 pm-6:05 pm

1 stop37h 55m

$3,016

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 12 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.

How much does it cost to fly round-trip from Seattle to Billund?

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 29, 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
8,359 reviews

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Entertainment

7.8

Comfort

7.9

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
8,359 reviews
Delta
7.9
Good
8,359 reviews

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Entertainment

7.8

Comfort

7.9

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
7,874 reviews
Delta
7.9
Good
8,359 reviews

Boarding

8.1

Food

7.2

Crew

8.5

Overall

7.9

Entertainment

7.8

Comfort

7.9

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 18h 35m. The distance from Seattle to Billund is about 4771 mi.

  • 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?

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Alternative routes for Seattle to Billund

See prices for flight routes from nearby airports that may be better suited for you.
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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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$421Average$822FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$597Average$762FlexibilityNo cancel feeOn-time76%

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