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Cheap flights from Madrid to Seattle from $398

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Madrid to Seattle departing on 5/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Madrid to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 am - 4:00 pm
MAD
-
SEA
17h 55m
1 stop
Multiple Airlines Logo
5:40 pm - 9:55 pm
SEA
-
MAD
19h 15m
1 stop
$765Multiple Airlines
Thu, May 21 - Wed, Jun 3
Multiple Airlines Logo
7:05 am - 4:00 pm
MAD
-
SEA
17h 55m
1 stop
Multiple Airlines Logo
5:40 pm - 9:55 pm
SEA
-
MAD
19h 15m
1 stop
$767Multiple Airlines
Thu, May 21 - Wed, Jun 3
JetBlue Logo
1:30 pm - 10:38 pm
MAD
-
SEA
18h 08m
1 stop
JetBlue Logo
11:55 pm - 11:30 am
SEA
-
MAD
26h 35m
1 stop
$770JetBlue
Tue, Sep 15 - Thu, Oct 1
JetBlue Logo
1:30 pm - 10:38 pm
MAD
-
SEA
18h 08m
1 stop
JetBlue Logo
11:55 pm - 11:30 am
SEA
-
MAD
26h 35m
1 stop
$771JetBlue
Tue, Sep 22 - Tue, Sep 29
Multiple Airlines Logo
7:05 am - 3:40 pm
MAD
-
SEA
17h 35m
1 stop
Multiple Airlines Logo
6:35 pm - 9:55 pm
SEA
-
MAD
19h 20m
1 stop
$784Multiple Airlines
Tue, Sep 15 - Sat, Oct 31
Multiple Airlines Logo
7:05 am - 3:40 pm
MAD
-
SEA
17h 35m
1 stop
Multiple Airlines Logo
6:35 pm - 9:55 pm
SEA
-
MAD
19h 20m
1 stop
$795Multiple Airlines
Tue, Sep 15 - Sat, Oct 31
Multiple Airlines Logo
10:40 am - 11:45 am
MAD
-
SEA
34h 05m
2 stops
Multiple Airlines Logo
3:40 pm - 10:00 pm
SEA
-
MAD
21h 20m
2 stops
$797Multiple Airlines
Thu, May 21 - Thu, Jun 4
United Airlines Logo
1:05 pm - 7:03 pm
MAD
-
SEA
38h 58m
2 stops
United Airlines Logo
5:00 pm - 8:50 am
SEA
-
MAD
30h 50m
2 stops
$799United Airlines
Thu, Jun 4 - Sat, Jun 6
JetBlue Logo
2:05 pm - 10:49 pm
MAD
-
SEA
17h 44m
1 stop
JetBlue Logo
11:55 pm - 11:30 am
SEA
-
MAD
26h 35m
1 stop
$801JetBlue
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
7:05 am - 3:40 pm
MAD
-
SEA
17h 35m
1 stop
Multiple Airlines Logo
6:35 pm - 9:55 pm
SEA
-
MAD
19h 20m
1 stop
$810Multiple Airlines
Tue, Sep 22 - Sat, Oct 24

Lufthansa flights from Madrid to Seattle

Our best Lufthansa deals on Madrid to Seattle flight tickets
Lufthansa
May 20
MAD5:55 amMadrid Barajas
15h 25m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
May 27
SEA2:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
MAD4:40 pmMadrid Barajas
$890
Lufthansa
May 15
MAD6:00 amMadrid Barajas
15h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
May 22
SEA6:50 pmSeattle/Tacoma Intl
13h 50m
1 stop
MAD5:40 pmMadrid Barajas
$895
Lufthansa
May 22
MAD6:00 amMadrid Barajas
15h 20m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
May 27
SEA6:50 pmSeattle/Tacoma Intl
18h 40m
1 stop
MAD10:30 pmMadrid Barajas
$897

Delta flights from Madrid to Seattle

Our best Delta deals on Madrid to Seattle flight tickets
Delta
May 20
MAD6:00 amMadrid Barajas
14h 42m
1 stop
SEA11:42 amSeattle/Tacoma Intl
May 27
SEA6:00 amSeattle/Tacoma Intl
20h 20m
2 stops
MAD11:20 amMadrid Barajas
$903
Delta
May 21
MAD6:00 amMadrid Barajas
14h 42m
1 stop
SEA11:42 amSeattle/Tacoma Intl
Jun 3
SEA5:30 amSeattle/Tacoma Intl
19h 00m
2 stops
MAD9:30 amMadrid Barajas
$908
Delta
May 20
MAD6:00 amMadrid Barajas
19h 37m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
May 27
SEA6:00 amSeattle/Tacoma Intl
20h 20m
2 stops
MAD11:20 amMadrid Barajas
$909

momondo Fare Finder

 
Customize your flight search to find flights from Madrid to Seattle 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, momondo users made 832,500 searches. Data last updated April 20, 2026.
Use the filters below to find and compare flights from Madrid to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 5/21

7:05 am-4:00 pm

1 stop17h 55m

Seattle/Tacoma Intl

Wed 6/3

5:40 pm-9:55 pm

1 stop19h 15m

$765

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 5/21

7:05 am-4:00 pm

1 stop17h 55m

Seattle/Tacoma Intl

Wed 6/3

5:40 pm-9:55 pm

1 stop19h 15m

$767

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/15

1:30 pm-10:38 pm

1 stop18h 08m

Seattle/Tacoma Intl

Thu 10/1

11:55 pm-11:30 am

1 stop26h 35m

$770

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/22

1:30 pm-10:38 pm

1 stop18h 08m

Seattle/Tacoma Intl

Tue 9/29

11:55 pm-11:30 am

1 stop26h 35m

$771
Quickest round-trip

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/15

7:05 am-3:40 pm

1 stop17h 35m

Seattle/Tacoma Intl

Sat 10/31

6:35 pm-9:55 pm

1 stop19h 20m

$784

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/15

7:05 am-3:40 pm

1 stop17h 35m

Seattle/Tacoma Intl

Sat 10/31

6:35 pm-9:55 pm

1 stop19h 20m

$795

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 5/21

10:40 am-11:45 am

2 stops34h 05m

Seattle/Tacoma Intl

Thu 6/4

3:40 pm-10:00 pm

2 stops21h 20m

$797

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Thu 6/4

1:05 pm-7:03 pm

2 stops38h 58m

Seattle/Tacoma Intl

Sat 6/6

5:00 pm-8:50 am

2 stops30h 50m

$799

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/8

2:05 pm-10:49 pm

1 stop17h 44m

Seattle/Tacoma Intl

Tue 9/15

11:55 pm-11:30 am

1 stop26h 35m

$801

MadridSeattle

MAD - SEA

MADSEA

Madrid Barajas

Tue 9/22

7:05 am-3:40 pm

1 stop17h 35m

Seattle/Tacoma Intl

Sat 10/24

6:35 pm-9:55 pm

1 stop19h 20m

$810

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Madrid 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

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

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Madrid to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $782. If you don’t want to visit Seattle in October, then you should wait until April to fly from Madrid, when ticket prices are also cheap, with an average price of $814.

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

You are more likely to see cheaper flights to Seattle from Madrid when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $910 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Madrid for as low as $843 on momondo.

How have Madrid to Seattle flight prices changed over time?

As of April 2026, prices for Madrid to Seattle flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from Madrid to Seattle

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

Cheap Madrid to Seattle (MAD to SEA) flight deals and tips

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

Fastest flight time

17h 44m

Direct flights

None
The fastest flight from Madrid to Seattle takes 17h 44m
There are no direct flights from Madrid to Seattle. There are no popular flight routes from Madrid to Seattle.
Search flight deals

Frequently asked questions about flying from Madrid to Seattle

  • How far is Madrid Barajas to Seattle/Tacoma Intl by plane?

    The distance between Madrid Barajas and Seattle/Tacoma Intl is about 5284.3 mi. A reasonable flight in good conditions will take 17h 44m.

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

    Prices for flights from Madrid Barajas Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Madrid Barajas Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Madrid Barajas Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Madrid Barajas 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.

  • What is the most popular airline from Madrid to Seattle?

Best airlines flying from Madrid to Seattle

Compare and see reviews for airlines that fly from Madrid to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $790Free CancellationRating
7.9
8,422 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Marysville
Tukwila
Puyallup
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Shoreline
Westport
Tumwater

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Madrid to Seattle for you.

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

Yes. momondo enables you to select and highlight flights to Seattle from Madrid with this policy.

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

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

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

Yes. momondo can track prices for Madrid 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.

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