Which airport is the most popular layover for flights between Billund and Seattle?

London (LHR) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Billund to Seattle/Tacoma Intl?

British Airways is the most popular carrier operating from Billund to Seattle/Tacoma Intl

Which layover airport has the shortest connection time from Billund to Seattle?

Amsterdam (AMS) has the shortest average layover time for this route: 3h 03m.

Which layover airport has the shortest travel time from Billund to Seattle?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 47m.

Which layover airport offers the lowest fares from Billund to Seattle?

Flights via London (LHR) offer the lowest average round-trip price of $593.

When did momondo last update prices for flights from Billund Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Billund Airport to Seattle/Tacoma Intl Airport are updated daily.

How old do you have to be to fly from Billund Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Billund Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$385 Cheap Flights from Billund to Seattle in 2026

Q: What is the typical price of a round-trip flight between Billund and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $740 to $939. The lowest price recently found on this route was $537.

Find the cheapest flights from Billund to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 pm - 11:25 am

BLL

SEA

23h 40m

1 stop

6:45 pm - 6:50 pm

SEA

BLL

15h 05m

1 stop

$537British Airways

Mon, Nov 9 - Mon, Nov 16

8:45 pm - 11:25 am

BLL

SEA

23h 40m

1 stop

8:11 am - 12:20 pm

SEA

BLL

19h 09m

2 stops

$539British Airways

Mon, Nov 9 - Mon, Nov 16

1:10 pm - 12:35 am

BLL

SEA

20h 25m

2 stops

8:11 am - 12:20 pm

SEA

BLL

19h 09m

2 stops

$544British Airways

Mon, Nov 9 - Mon, Nov 16

10:35 pm - 11:45 am

BLL

SEA

22h 10m

1 stop

3:40 pm - 9:50 pm

SEA

BLL

21h 10m

1 stop

$573Icelandair

Mon, Aug 17 - Sun, Aug 23

8:45 pm - 11:25 am

BLL

SEA

23h 40m

1 stop

1:40 pm - 8:00 pm

SEA

BLL

21h 20m

1 stop

$584British Airways

Mon, Nov 23 - Thu, Jan 28

8:45 pm - 11:25 am

BLL

SEA

23h 40m

1 stop

6:12 am - 12:05 pm

SEA

BLL

20h 53m

2 stops

$587British Airways

Mon, Nov 23 - Thu, Jan 28

8:45 pm - 8:15 pm

BLL

SEA

32h 30m

2 stops

6:12 am - 12:05 pm

SEA

BLL

20h 53m

2 stops

$590British Airways

Mon, Nov 23 - Thu, Jan 28

10:35 pm - 11:45 am

BLL

SEA

22h 10m

1 stop

3:40 pm - 9:50 pm

SEA

BLL

21h 10m

1 stop

$591Icelandair

Mon, Aug 17 - Sun, Aug 23

8:45 pm - 8:25 pm

BLL

SEA

32h 40m

2 stops

6:12 am - 12:05 pm

SEA

BLL

20h 53m

2 stops

$593British Airways

Mon, Nov 23 - Thu, Jan 28

4:00 pm - 11:37 am

BLL

SEA

28h 37m

1 stop

6:40 pm - 10:25 pm

SEA

BLL

18h 45m

1 stop

$621Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

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British Airways flights from Billund to Seattle

Our best British Airways deals on Billund to Seattle flight tickets

British Airways

Nov 9

BLL8:45 pmBillund

23h 40m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Nov 16

SEA6:45 pmSeattle/Tacoma Intl

15h 05m

1 stop

BLL6:50 pmBillund

$537

British Airways

Nov 9

BLL8:45 pmBillund

23h 40m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Nov 16

SEA8:11 amSeattle/Tacoma Intl

19h 09m

2 stops

BLL12:20 pmBillund

$539

British Airways

Nov 9

BLL1:10 pmBillund

20h 25m

2 stops

SEA12:35 amSeattle/Tacoma Intl

Nov 16

SEA8:11 amSeattle/Tacoma Intl

19h 09m

2 stops

BLL12:20 pmBillund

$544

Lufthansa flights from Billund to Seattle

Our best Lufthansa deals on Billund to Seattle flight tickets

Lufthansa

Aug 17

BLL6:55 pmBillund

31h 04m

2 stops

SEA4:59 pmSeattle/Tacoma Intl

Aug 23

SEA6:50 pmSeattle/Tacoma Intl

19h 30m

2 stops

BLL11:20 pmBillund

$752

Lufthansa

Aug 16

BLL6:55 pmBillund

55h 04m

2 stops

SEA4:59 pmSeattle/Tacoma Intl

Aug 23

SEA7:00 amSeattle/Tacoma Intl

22h 10m

2 stops

BLL2:10 pmBillund

$854

Lufthansa

Jul 23

BLL6:00 amBillund

15h 20m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Jul 30

SEA2:10 pmSeattle/Tacoma Intl

14h 50m

1 stop

BLL2:00 pmBillund

$1,027

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/9

8:45 pm-11:25 am

1 stop23h 40m

Seattle/Tacoma Intl

Mon 11/16

6:45 pm-6:50 pm

1 stop15h 05m

$537

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/9

8:45 pm-11:25 am

1 stop23h 40m

Seattle/Tacoma Intl

Mon 11/16

8:11 am-12:20 pm

2 stops19h 09m

$539

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/9

1:10 pm-12:35 am

2 stops20h 25m

Seattle/Tacoma Intl

Mon 11/16

8:11 am-12:20 pm

2 stops19h 09m

$544

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 8/17

10:35 pm-11:45 am

1 stop22h 10m

Seattle/Tacoma Intl

Sun 8/23

3:40 pm-9:50 pm

1 stop21h 10m

$573

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/23

8:45 pm-11:25 am

1 stop23h 40m

Seattle/Tacoma Intl

Thu 1/28

1:40 pm-8:00 pm

1 stop21h 20m

$584

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/23

8:45 pm-11:25 am

1 stop23h 40m

Seattle/Tacoma Intl

Thu 1/28

6:12 am-12:05 pm

2 stops20h 53m

$587

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/23

8:45 pm-8:15 pm

2 stops32h 30m

Seattle/Tacoma Intl

Thu 1/28

6:12 am-12:05 pm

2 stops20h 53m

$590

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 8/17

10:35 pm-11:45 am

1 stop22h 10m

Seattle/Tacoma Intl

Sun 8/23

3:40 pm-9:50 pm

1 stop21h 10m

$591

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/23

8:45 pm-8:25 pm

2 stops32h 40m

Seattle/Tacoma Intl

Thu 1/28

6:12 am-12:05 pm

2 stops20h 53m

$593

BillundSeattle

BLL - SEA

BLLSEA

Billund

Sun 8/16

4:00 pm-11:37 am

1 stop28h 37m

Seattle/Tacoma Intl

Sun 8/23

6:40 pm-10:25 pm

1 stop18h 45m

$621

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Billund to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Billund and Seattle?

What is the cheapest month to fly to Seattle?

In general, December is the cheapest month to fly from Billund to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $548. If you don’t want to visit Seattle in December, then you should wait until April to fly from Billund, when ticket prices are also cheap, with an average price of $595.

How far in advance should I book a flight from Billund to Seattle?

You are more likely to see cheaper flights to Seattle from Billund when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $749 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Billund for as low as $635 on momondo.

When to book flights from Billund to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Billund to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Billund to Seattle (BLL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Billund to Seattle

Fastest flight time	14h 25m
Direct flights	None

The fastest flight from Billund to Seattle takes 14h 25m

There are no direct flights from Billund to Seattle. There are no popular flight routes from Billund to Seattle.

Search flight deals

Frequently asked questions about flying from Billund to Seattle

How far is Billund to Seattle/Tacoma Intl by plane?
The straight-line distance from Billund to Seattle/Tacoma Intl is 4761.2 mi. By plane, this route typically takes 14h 25m.
When did momondo last update prices for flights from Billund Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Billund Airport to Seattle/Tacoma Intl Airport are updated daily.
How old do you have to be to fly from Billund Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Billund Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Tukwila

Puyallup

Fife

Federal Way

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Billund to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Billund to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Billund to Seattle with flexible booking policies on momondo?

Flights from Billund to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Billund to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Billund. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Billund to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Billund to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.