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Billund

$480+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
mar 30 — apr 61
lun 3/30
lun 4/6
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 febbraio 28, 2026.

This Delta deal was found by Cheapflights users on 2/27. 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.
mar 4/147:15 am
SEA
-
BLL
2 stops19h 05m
Delta
ven 4/246:00 am
BLL
-
SEA
1 stop14h 45m
Delta
Deal found 2/27$480
This KLM deal was found by Cheapflights users on 2/27. 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.
gio 4/165:35 pm
SEA
-
BLL
1 stop32h 20m
KLM
ven 4/246:00 am
BLL
-
SEA
1 stop14h 45m
KLM
Deal found 2/27$488
This Delta deal was found by Cheapflights users on 2/27. 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.
dom 4/1210:25 pm
SEA
-
BLL
2 stops26h 10m
Delta
gio 4/236:00 am
BLL
-
SEA
1 stop19h 30m
Delta
Deal found 2/27$492
This Delta deal was found by Cheapflights users on 2/27. 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.
sab 4/185:35 pm
SEA
-
BLL
1 stop31h 00m
Delta
mar 4/2810:15 am
BLL
-
SEA
2 stops19h 28m
Delta
Deal found 2/27$498
This Delta deal was found by Cheapflights users on 2/27. 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.
dom 4/1210:25 pm
SEA
-
BLL
2 stops26h 10m
Delta
dom 4/266:40 am
BLL
-
SEA
2 stops20h 50m
Delta
Deal found 2/27$502
This Delta deal was found by Cheapflights users on 2/27. 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.
dom 4/1210:25 pm
SEA
-
BLL
2 stops26h 10m
Delta
mer 4/2210:15 am
BLL
-
SEA
2 stops19h 28m
Delta
Deal found 2/27$503
This British Airways deal was found by Cheapflights users on 2/27. 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.
dom 4/128:20 pm
SEA
-
BLL
1 stop28h 30m
British Airways
mar 4/283:20 pm
BLL
-
SEA
1 stop29h 15m
British Airways
Deal found 2/27$517
This Delta deal was found by Cheapflights users on 2/27. 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.
gio 4/167:15 am
SEA
-
BLL
2 stops17h 20m
Delta
dom 4/266:40 am
BLL
-
SEA
2 stops23h 06m
Delta
Deal found 2/27$523
This Delta deal was found by Cheapflights users on 2/27. 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.
lun 4/137:15 am
SEA
-
BLL
2 stops21h 15m
Delta
mar 4/286:00 am
BLL
-
SEA
2 stops23h 04m
Delta
Deal found 2/27$524
This KLM deal was found by Cheapflights users on 2/28. 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.
sab 10/101:30 pm
SEA
-
BLL
1 stop17h 55m
Multiple Airlines
ven 10/166:00 am
BLL
-
SEA
1 stop14h 52m
Multiple Airlines
Deal found 2/28$525
This Expedia deal was found by Cheapflights users on 2/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 4/141:35 pm
SEA
-
BLL
1 stop21h 15m
British Airways
mar 4/2110:40 am
BLL
-
SEA
2 stops20h 58m
British Airways
Deal found 2/28$527

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 febbraio 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$480
(Delta)

Popular in

January

Cheapest in

February

Average price

$499
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, 0% 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 February 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 febbraio 28, 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

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

mar 4/14

5:35 pm-5:55 pm

1 stop15h 20m

Billund

mar 4/21

6:00 am-4:30 pm

1 stop19h 30m

$488

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

mar 4/14

7:15 am-11:20 am

2 stops19h 05m

Billund

mar 4/21

10:15 am-8:43 pm

2 stops19h 28m

$491

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

gio 4/16

7:15 am-9:35 am

2 stops17h 20m

Billund

ven 4/24

6:00 am-11:45 am

1 stop14h 45m

$492

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

sab 4/18

5:35 pm-9:35 am

1 stop31h 00m

Billund

gio 4/23

6:00 am-8:43 pm

2 stops23h 43m

$498

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

dom 4/12

10:25 pm-9:35 am

2 stops26h 10m

Billund

lun 4/27

6:40 am-11:51 pm

2 stops26h 11m

$502

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

mar 4/14

1:35 pm-7:50 pm

1 stop21h 15m

Billund

mar 4/21

10:40 am-10:38 pm

2 stops20h 58m

$527

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

lun 4/13

1:35 pm-2:30 pm

1 stop15h 55m

Billund

sab 4/25

12:30 pm-11:35 am

1 stop32h 05m

$567

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

lun 6/29

5:40 pm-5:55 pm

1 stop15h 15m

Billund

gio 7/9

10:15 am-4:20 pm

1 stop15h 05m

$646

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

mer 4/15

1:45 pm-11:00 am

1 stop12h 15m

Billund

gio 4/23

6:00 am-11:45 am

1 stop14h 45m

$689

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

gio 4/2

7:00 am-10:00 am

2 stops18h 00m

Billund

dom 4/12

10:35 am-9:53 pm

2 stops44h 18m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/28

Showing 1-10 of 16 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 febbraio 28, 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
8,244 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Crew

8.5

Overall

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
8,244 reviews
Delta
7.9
Good
8,244 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Crew

8.5

Overall

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
7,817 reviews
Delta
7.9
Good
8,244 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Crew

8.5

Overall

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 15h 20m. 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

Browse thousands of different options on Cheapflights for your next trip

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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.
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 febbraio 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$421Average$788FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$597Average$762FlexibilityNo cancel feeOn-time76%

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