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BLL - SEA

$608 Find Cheap Flights from Billund to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$608
Typical prices: $655-$952
Air France
Mon 11/5Fri 11/9
BLL - SEA • 1 stop
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
13 weeks
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 21% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $665 (round-trip)
Kastrup Copenhagen (CPH)
Shortest trip • 13h 23m (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

Thu, Nov 5 - Mon, Nov 9
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
Thu, Nov 5 - Mon, Nov 9
KLM Logo
7:05 pm - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
25h 42m1 stop Amsterdam Schiphol
KLM Logo
9:25 am - 11:25 amSEA  Seattle/Tacoma Intl-BLL Billund
17h 00m2 stops Salt Lake City Amsterdam Schiphol
$613KLM
Thu, Nov 5 - Mon, Nov 9
Delta Logo
6:00 am - 11:47 amBLL  Billund-SEA Seattle/Tacoma Intl
14h 47m1 stop Amsterdam Schiphol
Delta Logo
10:39 am - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
18h 46m2 stops Chicago O'Hare Intl Paris Charles de Gaulle
$622Delta
Thu, Nov 5 - Mon, Nov 9
Delta Logo
10:25 am - 8:50 pmBLL  Billund-SEA Seattle/Tacoma Intl
19h 25m2 stops Amsterdam Schiphol Minneapolis St Paul
Delta Logo
10:39 am - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
18h 46m2 stops Chicago O'Hare Intl Paris Charles de Gaulle
$627Delta
Thu, Nov 5 - Mon, Nov 9
Delta Logo
12:15 pm - 10:05 pmBLL  Billund-SEA Seattle/Tacoma Intl
18h 50m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
Delta Logo
10:39 am - 2:25 pmSEA  Seattle/Tacoma Intl-BLL Billund
18h 46m2 stops Chicago O'Hare Intl Paris Charles de Gaulle
$627Delta
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
9:00 pm - 11:48 pmBLL  Billund-SEA Seattle/Tacoma Intl
35h 48m2 stops London Heathrow Dallas/Fort Worth
British Airways Logo
6:20 am - 12:15 pmSEA  Seattle/Tacoma Intl-BLL Billund
44h 55m2 stops Chicago O'Hare Intl London Heathrow
$647British Airways
Wed, Dec 2 - Sun, Dec 6
British Airways Logo
9:00 pm - 11:48 pmBLL  Billund-SEA Seattle/Tacoma Intl
35h 48m2 stops London Heathrow Dallas/Fort Worth
British Airways Logo
6:45 pm - 12:15 pmSEA  Seattle/Tacoma Intl-BLL Billund
32h 30m1 stop London Heathrow
$647British Airways
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 $655 to $952. The lowest price found in the past 5 days was $608, on Air France.

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, Monday is the cheapest day of the week to fly from Billund to Seattle. It’s 13% cheaper than the average day, while Sunday is the most expensive, with prices 11% 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 ($965) 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 13 weeks before departure. Booking in this window typically costs about 34% 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

$608
Beat the crowds with an average 63% drop in travelers.
The most popular month to fly with an average 5% 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 $655 to $952, with an average of $788 over the past 12 months. Anything below $655 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 26% above the $788 route average. Book 13 weeks before departure for the lowest fares.

  • 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 starting from around $4 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • 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) - 42% of one-stop connections
    • Frankfurt am Main (FRA) - 25% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 14% 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 22% on flights from Billund to Seattle. Monday is the cheapest departure day at $688 round-trip on average, while Sunday is the most expensive at $881, a difference of $193.

    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 23m, compared with 13h 48m via Paris Charles de Gaulle (CDG) and 14h 12m 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 Monday departure and avoid flying on Sunday. On this route, Monday flights average $688, about $193 less than Sunday fares (22% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 34% 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 $345 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
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