BLL - SEA

$499 Find Cheap Flights from Billund to Seattle - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$499
Typical prices: $661-$956
British Airways
Mon 4/16Fri 4/20
BLL - SEA • 1 stop
Cheapest one-way
$550
Typical prices: $535-$1,011
Multiple Airlines
Sun 12/2
BLL - SEA • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Billund and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 22% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $666 (round-trip)
Kastrup Copenhagen (CPH)
Shortest trip • 13h 13m (one-way)
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Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billund to Seattle (BLL-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billund to Seattle

Mon, Nov 16 - Mon, Nov 23
Air France Logo
7:05 am - 3:14 pmBLL  Billund-SEA Seattle/Tacoma Intl
17h 09m1 stop Paris Charles de Gaulle
Air France Logo
3:25 pm - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 00m1 stop Paris Charles de Gaulle
$595Air France
Mon, Nov 16 - Mon, Nov 23
Multiple Airlines Logo
6:00 am - 2:55 pmBLL  Billund-SEA Seattle/Tacoma Intl
17h 55m2 stops Amsterdam Schiphol Salt Lake City
Multiple Airlines Logo
3:25 pm - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 00m1 stop Paris Charles de Gaulle
$597Multiple Airlines
Wed, Nov 18 - Sun, Nov 22
Multiple Airlines Logo
7:05 pm - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
25h 42m1 stop Amsterdam Schiphol
Multiple Airlines Logo
3:25 pm - 9:45 pmSEA  Seattle/Tacoma Intl-BLL Billund
21h 20m1 stop Paris Charles de Gaulle
$605Multiple Airlines
Thu, Nov 19 - Mon, Nov 23
Air France Logo
6:00 am - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
Air France Logo
3:25 pm - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 00m1 stop Paris Charles de Gaulle
$608Air France
Wed, Nov 18 - Sun, Nov 22
Multiple Airlines Logo
6:00 am - 2:55 pmBLL  Billund-SEA Seattle/Tacoma Intl
17h 55m2 stops Amsterdam Schiphol Salt Lake City
Multiple Airlines Logo
3:25 pm - 9:45 pmSEA  Seattle/Tacoma Intl-BLL Billund
21h 20m1 stop Paris Charles de Gaulle
$610Multiple Airlines
Thu, Nov 19 - Mon, Nov 23
Air France Logo
6:00 am - 2:55 pmBLL  Billund-SEA Seattle/Tacoma Intl
17h 55m2 stops Amsterdam Schiphol Salt Lake City
Air France Logo
3:25 pm - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 00m1 stop Paris Charles de Gaulle
$616Air France
Fri, Apr 16 - Tue, Apr 20
British Airways Logo
10:00 pm - 11:35 amBLL  Billund-SEA Seattle/Tacoma Intl
22h 35m1 stop London Heathrow
British Airways Logo
8:20 pm - 7:50 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 30m1 stop London Heathrow
$621British Airways
Thu, Nov 19 - Mon, Nov 23
Multiple Airlines Logo
6:00 am - 2:55 pmBLL  Billund-SEA Seattle/Tacoma Intl
17h 55m2 stops Amsterdam Schiphol Salt Lake City
Multiple Airlines Logo
9:25 am - 11:25 amSEA  Seattle/Tacoma Intl-BLL Billund
17h 00m2 stops Salt Lake City Amsterdam Schiphol
$622Multiple Airlines
Wed, Nov 18 - Sun, Nov 22
Delta Logo
10:25 am - 9:00 pmBLL  Billund-SEA Seattle/Tacoma Intl
19h 35m2 stops Amsterdam Schiphol Vancouver Intl
Delta Logo
10:39 am - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
18h 46m2 stops Chicago O'Hare Intl Paris Charles de Gaulle
$623Delta
Thu, Nov 19 - Mon, Nov 23
Delta Logo
6:00 am - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
Delta Logo
3:25 pm - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
14h 00m1 stop Paris Charles de Gaulle
$624Delta
Booking Insights

Price, demand and travel trends for Billund to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Billund to Seattle?

Round-trip flights from Billund to Seattle typically range from $661 to $956. The lowest price found in the past 5 days was $499, on British Airways.

What's the cheapest day of the week to fly from Billund to Seattle?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Billund to Seattle. It’s 7% cheaper than the average day, while Sunday is the most expensive, with prices 10% higher.

What’s the cheapest month to fly from Billund to Seattle?

•April is the cheapest month to fly from Billund to Seattle at $620 round-trip.
•July ($964) and March ($953) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 55% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Billund to Seattle the cheapest?

Flights from Billund to Seattle are cheapest 18 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Billund to Seattle flights

Low season

February

Cheapest flight

$499
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 60% increase in travelers.
Round-trip flight from Billund to Seattle

When to book flights from Billund to Seattle

Are your dates flexible? Find out the best times to travel from Billund to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Billund to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Billund to Seattle?

    Two cabin classes are available on flights from Billund to Seattle:

    • Economy Class
    • Business Class

  • How long is a flight from Billund to Seattle?

    A nonstop flight from Billund to Seattle takes 00m, covering 4,771 miles.

  • Do I need a passport to fly from Billund to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Billund to Seattle flight?

    Round-trip flights from Billund to Seattle range from $661 to $956, with an average of $799 over the past 12 months. Anything below $661 counts as a good deal.

  • How expensive are last-minute Billund to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 22% above the $799 route average. Book 18 weeks before departure for the lowest fares.

  • How are flight prices from Billund to Seattle looking right now?

    One-way fares from Billund to Seattle are currently lower than usual. Average one-way flight prices are about $616, which is 18% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Billund to Seattle?

    Flights from Billund to Seattle usually depart from Billund (BLL) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Billund to Seattle pass through?

    One-stop flights from Billund to Seattle most commonly connect through:

    • Amsterdam Schiphol (AMS) - 44% of one-stop connections
    • Frankfurt am Main (FRA) - 21% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 15% of one-stop connections
    • London Heathrow (LHR) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from Billund to Seattle?

    Yes. Flexible dates can save you up to 15% on flights from Billund to Seattle. Thursday is the cheapest departure day at $749 round-trip on average, while Sunday is the most expensive at $881, a difference of $132.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Billund to Seattle?

    Flying via Kastrup Copenhagen (CPH) gives the shortest average 1-stop total travel time at 13h 13m, compared with 13h 49m via Paris Charles de Gaulle (CDG) and 14h 08m via Amsterdam Schiphol (AMS).

  • What is the time difference between Billund and Seattle?

    Seattle is 9 hours behind Billund (Pacific Time vs Central European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Billund to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $749, about $132 less than Sunday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Billund to Seattle trip for April. Fares historically average $620 round-trip in that month - typically $344 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Billund to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle