Is Iberia the cheapest airline to fly with from Seattle to London?

With an average price of $719 return, Iberia is not the cheapest airline to fly from Seattle to London with. Instead, for the lowest price, our data suggests flying with Icelandair, where a return flight costs $657 on average.

What is the cheapest Iberia flight from Seattle to London?

In the last 3 days, the lowest price for a flight with Iberia from Seattle to London was $482 for a return flight and $333 for a one-way flight.

Does Iberia fly direct to London from Seattle?

Yes, Iberia does offer direct flights for the route, with around 8 flights per week.

What’s the cheapest day of the week to fly from Seattle to London with Iberia?

On average, the cheapest day of the week to fly from Seattle to London with Iberia is Sunday, when prices are around $376. The most expensive day is generally Friday, where the average price is around $437.

What’s the cheapest month to fly from Seattle to London with Iberia?

The cheapest month for Iberia flights to London from Seattle is generally October, where plane tickets cost $400 on average. If possible, try to avoid the most expensive months of December and June, where tickets cost $648 and $670 respectively.

$579 Cheap Iberia Flights from Seattle to London

Flight Deals

Cheap Iberia Flight Deals from Seattle to London

Here are some of the best deals found on KAYAK recently from Iberia for round-trip flights from Seattle to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Recent round-trip Iberia flight deals from Seattle to London

Sun, Jan 18 - Sat, Jan 31

10:50 am - 8:35 am

SEA

LHR

13h 45m1 stop

7:30 am - 10:20 pm

LHR

SEA

22h 50m2 stops

$629Iberia

Thu, Jan 15 - Wed, Jan 28

8:35 am - 8:35 am

SEA

LHR

16h 00m1 stop

7:35 am - 9:47 pm

LHR

SEA

22h 12m2 stops

$630Iberia

Thu, Jan 15 - Sat, Jan 31

8:04 am - 8:15 am

SEA

LHR

16h 11m1 stop

7:30 am - 10:20 pm

LHR

SEA

22h 50m2 stops

$631Iberia

Wed, Dec 31 - Mon, Jan 12

10:16 am - 8:35 am

SEA

LHR

14h 19m1 stop

7:40 pm - 9:37 am

LHR

SEA

21h 57m2 stops

$742Iberia

Tue, Feb 3 - Thu, Feb 26

8:30 am - 7:00 pm

SEA

LGW

26h 30m2 stops

7:40 pm - 11:29 pm

LGW

SEA

35h 49m2 stops

$865Iberia

Sun, Mar 29 - Mon, Apr 6

8:00 am - 10:30 am

SEA

LHR

18h 30m1 stop

6:45 pm - 11:05 pm

LHR

SEA

36h 20m2 stops

$889Iberia

Wed, Jan 14 - Mon, Mar 16

10:50 am - 10:50 am

SEA

LGW

40h 00m2 stops

7:40 pm - 8:16 pm

LGW

SEA

31h 36m2 stops

$910Iberia

Thu, May 7 - Mon, May 18

3:21 pm - 12:15 pm

SEA

LHR

12h 54m1 stop

7:10 pm - 4:59 pm

LHR

SEA

29h 49m2 stops

$926Iberia

Thu, May 7 - Thu, May 14

3:21 pm - 12:15 pm

SEA

LHR

12h 54m1 stop

10:50 am - 4:59 pm

LHR

SEA

38h 09m2 stops

$934Iberia

Mon, May 11 - Sun, May 17

3:21 pm - 12:15 pm

SEA

LHR

12h 54m1 stop

5:10 pm - 4:59 pm

LHR

SEA

31h 49m2 stops

$937Iberia

Useful Info

High season	April
Cheapest flight	$579
Average price round-trip	$1,109

Most popular time to fly and prices are also 16% lower on average.

Flight from Seattle to London Gatwick Airport

(price for this month)

When to Book Flights with Iberia from Seattle to London

Average price per month

Flight prices as travel date approaches

Is Iberia the cheapest airline to fly with from Seattle to London?
With an average price of $719 return, Iberia is not the cheapest airline to fly from Seattle to London with. Instead, for the lowest price, our data suggests flying with Icelandair, where a return flight costs $657 on average.
What is the cheapest Iberia flight from Seattle to London?
In the last 3 days, the lowest price for a flight with Iberia from Seattle to London was $482 for a return flight and $333 for a one-way flight.
Does Iberia fly direct to London from Seattle?
Yes, Iberia does offer direct flights for the route, with around 8 flights per week.
What’s the cheapest day of the week to fly from Seattle to London with Iberia?
On average, the cheapest day of the week to fly from Seattle to London with Iberia is Sunday, when prices are around $376. The most expensive day is generally Friday, where the average price is around $437.
What’s the cheapest month to fly from Seattle to London with Iberia?
The cheapest month for Iberia flights to London from Seattle is generally October, where plane tickets cost $400 on average. If possible, try to avoid the most expensive months of December and June, where tickets cost $648 and $670 respectively.

7.0

Good3,050 verified ratings

6.6Entertainment

6.7Comfort

7.1Boarding

6.3Food

7.7Crew

Cons -

And this flight was late (in 314 reviews)

8.0 Very good

Juan, Dec 2025

MAD

BOG

Amazing but the toilets were a little dirty

10.0 Wonderful

Maricarmen, Dec 2025

MAD

BOS

Excellent

2.0 Poor

Verified traveler, Dec 2025

JAX

MIA

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

2.0 Poor

John, Dec 2025

ORD

MAD

Awful

2.0 Poor

Verified traveler, Dec 2025

MAD

ALC

the seats were bad and uncomfortable and the food was not tasty.

2.0 Poor

Verified traveler, Dec 2025

JFK

MAD

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

10.0 Wonderful

Daniel, Dec 2025

MCO

MAD

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

6.0 Okay

CFJ, Dec 2025

GVA

BCN

It was budget airline Veuling, even though we booked Iberia.

10.0 Wonderful

T, Nov 2025

MAD

AMS

The crew was amazing. I appreciate the level of professionalism in the Iberia crew.

8.0 Very good

Paul, Nov 2025

MAD

DFW

A more organized boarding experience and better food would have made the experience better.

Everything you need to know for your flight from Seattle to London

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Complete your trip

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Other airlines flying from Seattle to London

Delta flights from Seattle to London

Virgin Atlantic flights from Seattle to London

Icelandair flights from Seattle to London

British Airways flights from Seattle to London

SEA - LON

$579 Find Cheap Iberia Flights from Seattle to London

Search hundreds of travel sites at once for deals on Iberia flights from Seattle to London

Cheap Iberia Flight Deals from Seattle to London

Recent round-trip Iberia flight deals from Seattle to London

Recent one-way Iberia flight deals from Seattle to London

Recent last minute Iberia flight deals from Seattle to London

Good to know

When to Book Flights with Iberia from Seattle to London

FAQs for flying to London with Iberia

Is Iberia the cheapest airline to fly with from Seattle to London?

With an average price of $719 return, Iberia is not the cheapest airline to fly from Seattle to London with. Instead, for the lowest price, our data suggests flying with Icelandair, where a return flight costs $657 on average.

What is the cheapest Iberia flight from Seattle to London?

In the last 3 days, the lowest price for a flight with Iberia from Seattle to London was $482 for a return flight and $333 for a one-way flight.

Does Iberia fly direct to London from Seattle?

Yes, Iberia does offer direct flights for the route, with around 8 flights per week.

What’s the cheapest day of the week to fly from Seattle to London with Iberia?

On average, the cheapest day of the week to fly from Seattle to London with Iberia is Sunday, when prices are around $376. The most expensive day is generally Friday, where the average price is around $437.

What’s the cheapest month to fly from Seattle to London with Iberia?

The cheapest month for Iberia flights to London from Seattle is generally October, where plane tickets cost $400 on average. If possible, try to avoid the most expensive months of December and June, where tickets cost $648 and $670 respectively.

Iberia Customer Reviews

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Everything you need to know for your flight from Seattle to London

Other airlines flying from Seattle to London

Flights from the other most popular airlines that fly from Seattle to London according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Cabin class types available on flights to London

Cabin classes available on flights to Seattle. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Top Iberia flights

The most popular destinations for flights with Iberia according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Find deals for your return flight