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

Amsterdam (AMS) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

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: 13h 58m.

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

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

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

Amsterdam (AMS) has the shortest average layover time for this route: 2h 01m.

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.

$583 Cheap Flights from Billund to Seattle in 2026

Find the cheapest flights from Billund to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 4:35 pmBLL Billund-SEA Seattle/Tacoma Intl

19h 35m1 stop Amsterdam Schiphol

1:30 pm - 11:20 amSEA Seattle/Tacoma Intl-BLL Billund

12h 50m1 stop Paris Charles de Gaulle

$583Air France

Thu, Sep 24 - Tue, Sep 29

2:20 pm - 11:47 amBLL Billund-SEA Seattle/Tacoma Intl

30h 27m1 stop Amsterdam Schiphol

6:45 pm - 11:20 amSEA Seattle/Tacoma Intl-BLL Billund

31h 35m1 stop Paris Charles de Gaulle

$584Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

9:00 pm - 11:25 amBLL Billund-SEA Seattle/Tacoma Intl

23h 25m1 stop London Heathrow

6:45 pm - 8:05 pmSEA Seattle/Tacoma Intl-BLL Billund

16h 20m1 stop London Heathrow

$596British Airways

Wed, Dec 2 - Sun, Dec 6

9:00 pm - 11:25 amBLL Billund-SEA Seattle/Tacoma Intl

23h 25m1 stop London Heathrow

6:14 am - 8:05 pmSEA Seattle/Tacoma Intl-BLL Billund

28h 51m2 stops Chicago O'Hare Intl London Heathrow

$598British Airways

Wed, Dec 2 - Sun, Dec 6

9:00 pm - 11:25 amBLL Billund-SEA Seattle/Tacoma Intl

23h 25m1 stop London Heathrow

6:45 pm - 8:05 pmSEA Seattle/Tacoma Intl-BLL Billund

16h 20m1 stop London Heathrow

$599British Airways

Wed, Dec 2 - Sun, Dec 6

9:00 pm - 11:25 amBLL Billund-SEA Seattle/Tacoma Intl

23h 25m1 stop London Heathrow

6:14 am - 8:05 pmSEA Seattle/Tacoma Intl-BLL Billund

28h 51m2 stops Chicago O'Hare Intl London Heathrow

$600British Airways

Wed, Dec 2 - Sun, Dec 6

1:05 pm - 12:32 amBLL Billund-SEA Seattle/Tacoma Intl

20h 27m2 stops London Heathrow Chicago O'Hare Intl

6:14 am - 11:20 amSEA Seattle/Tacoma Intl-BLL Billund

20h 06m2 stops Chicago O'Hare Intl London Heathrow

$601British Airways

Wed, Dec 2 - Sun, Dec 6

1:05 pm - 12:32 amBLL Billund-SEA Seattle/Tacoma Intl

20h 27m2 stops London Heathrow Chicago O'Hare Intl

6:14 am - 11:20 amSEA Seattle/Tacoma Intl-BLL Billund

20h 06m2 stops Chicago O'Hare Intl London Heathrow

$603British Airways

Wed, Dec 2 - Sun, Dec 6

1:05 pm - 12:32 amBLL Billund-SEA Seattle/Tacoma Intl

20h 27m2 stops London Heathrow Chicago O'Hare Intl

6:14 am - 11:20 amSEA Seattle/Tacoma Intl-BLL Billund

20h 06m2 stops Chicago O'Hare Intl London Heathrow

$605British Airways

Wed, Dec 2 - Sun, Dec 6

2:30 pm - 12:47 pmBLL Billund-SEA Seattle/Tacoma Intl

30h 17m1 stop Amsterdam Schiphol

4:05 pm - 9:45 pmSEA Seattle/Tacoma Intl-BLL Billund

20h 40m1 stop Paris Charles de Gaulle

$608Air France

Thu, Oct 29 - Thu, Nov 5

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British Airways flights from Billund to Seattle

Our best British Airways deals on Billund to Seattle flight tickets

British Airways

Dec 2

BLL9:00 pmBillund

23h 25m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 6

SEA6:14 amSeattle/Tacoma Intl

28h 51m

2 stops

BLL8:05 pmBillund

$596

British Airways

Dec 2

BLL9:00 pmBillund

23h 25m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 6

SEA6:14 amSeattle/Tacoma Intl

28h 51m

2 stops

BLL8:05 pmBillund

$598

British Airways

Dec 2

BLL9:00 pmBillund

23h 25m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 6

SEA6:45 pmSeattle/Tacoma Intl

16h 20m

1 stop

BLL8:05 pmBillund

$599

United Airlines flights from Billund to Seattle

Our best United Airlines deals on Billund to Seattle flight tickets

United Airlines

Dec 2

BLL6:35 amBillund

25h 38m

3 stops

SEA11:13 pmSeattle/Tacoma Intl

Dec 6

SEA7:00 amSeattle/Tacoma Intl

17h 50m

2 stops

BLL9:50 amBillund

$734

United Airlines

Dec 2

BLL6:35 amBillund

20h 52m

2 stops

SEA6:27 pmSeattle/Tacoma Intl

Dec 6

SEA6:15 amSeattle/Tacoma Intl

27h 05m

3 stops

BLL6:20 pmBillund

$736

United Airlines

Dec 2

BLL6:35 amBillund

25h 38m

2 stops

SEA11:13 pmSeattle/Tacoma Intl

Dec 6

SEA6:15 amSeattle/Tacoma Intl

27h 05m

3 stops

BLL6:20 pmBillund

$738

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Thu 9/24

6:00 am-4:35 pm

1 stop19h 35m

Seattle/Tacoma Intl

Tue 9/29

1:30 pm-11:20 am

1 stop12h 50m

$583

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 9/23

2:20 pm-11:47 am

1 stop30h 27m

Seattle/Tacoma Intl

Mon 9/28

6:45 pm-11:20 am

1 stop31h 35m

$584

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

9:00 pm-11:25 am

1 stop23h 25m

Seattle/Tacoma Intl

Sun 12/6

6:45 pm-8:05 pm

1 stop16h 20m

$596

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

9:00 pm-11:25 am

1 stop23h 25m

Seattle/Tacoma Intl

Sun 12/6

6:14 am-8:05 pm

2 stops28h 51m

$598

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

9:00 pm-11:25 am

1 stop23h 25m

Seattle/Tacoma Intl

Sun 12/6

6:45 pm-8:05 pm

1 stop16h 20m

$599

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

9:00 pm-11:25 am

1 stop23h 25m

Seattle/Tacoma Intl

Sun 12/6

6:14 am-8:05 pm

2 stops28h 51m

$600

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

1:05 pm-12:32 am

2 stops20h 27m

Seattle/Tacoma Intl

Sun 12/6

6:14 am-11:20 am

2 stops20h 06m

$601

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

1:05 pm-12:32 am

2 stops20h 27m

Seattle/Tacoma Intl

Sun 12/6

6:14 am-11:20 am

2 stops20h 06m

$603

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Wed 12/2

1:05 pm-12:32 am

2 stops20h 27m

Seattle/Tacoma Intl

Sun 12/6

6:14 am-11:20 am

2 stops20h 06m

$605

BillundSeattle

BLL Billund - SEA Seattle/Tacoma Intl

BLLSEA

Billund

Thu 10/29

2:30 pm-12:47 pm

1 stop30h 17m

Seattle/Tacoma Intl

Thu 11/5

4:05 pm-9:45 pm

1 stop20h 40m

$608

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

Layovers

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 $693 to $844.
The lowest price recently found on this route was $596.

What is the cheapest month to fly to Seattle?

In general, April 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 $595. If you don’t want to visit Seattle in April, then you should wait until December to fly from Billund, when ticket prices are also cheap, with an average price of $640.

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 $786 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 $644 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

Best Price Found	$686
Fastest flight time	23h 25m
Direct flights	None

The best one-way flight to Seattle from Billund in the past 72 hours is $686. The best round-trip flight deal from Billund to Seattle found on momondo in the last 72 hours is $583.

The fastest flight from Billund to Seattle takes 23h 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 23h 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.

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SeaTac

Ocean Shores

Renton

Kent

Olympia

Redmond

Lakewood

Federal Way

Fife

Tukwila

Puyallup

Lynnwood

Cle Elum

Marysville

Kirkland

Centralia

Lacey

Shoreline

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.