$383 Cheap flight deals from Seattle (SEA) to Cambridge (LON)

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Airfares from $383 One Way, $884 Round Trip from Seattle to Cambridge

Prices starting at $884 for return flights and $383 for one-way flights to Cambridge were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 29 - Wed, Oct 7
SEA
Seattle
STN
London
$884 Roundtrip, found 3 days ago
$884
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, Sep 29 from Seattle to London, returning Wed, Oct 7, priced at $884 found 3 days ago
Sun, Sep 27 - Mon, Oct 5
SEA
Seattle
STN
London
$885 Roundtrip, found 2 days ago
$885
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sun, Sep 27 from Seattle to London, returning Mon, Oct 5, priced at $885 found 2 days ago
Sun, Sep 27 - Mon, Oct 5
SEA
Seattle
STN
London
$895 Roundtrip, found 2 days ago
$895
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sun, Sep 27 from Seattle to London, returning Mon, Oct 5, priced at $895 found 2 days ago
Sun, Sep 27 - Mon, Oct 5
SEA
Seattle
STN
London
$904 Roundtrip, found 2 days ago
$904
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sun, Sep 27 from Seattle to London, returning Mon, Oct 5, priced at $904 found 2 days ago
Tue, Sep 22 - Tue, Sep 29
SEA
Seattle
STN
London
$904 Roundtrip, found 2 days ago
$904
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Sep 22 from Seattle to London, returning Tue, Sep 29, priced at $904 found 2 days ago

More About Flying To Cambridge from Seattle

Route Information for Flights from Seattle to Cambridge

Origin Airport IATA Code
SEA
Destination Airport IATA Code
LON
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to Cambridge

Orbitz guarantees you low prices on flights from Seattle to Cambridge. In addition to low fares on Seattle to Cambridge flights, Orbitz offers fantastic savings on hotels, cruises, vacation packages, and more.

Earn Miles While Saving

Besides helping you fly for the lowest fares, Orbitz lets you earn miles for your frequent flyer program for certain flights from Seattle to Cambridge. If you are a member of the frequent flyer or loyalty program offered by the airline you booked through Orbitz or a partner airline’s, simply add your frequent flyer number to your Orbitz reservation to get credit for your Seattle to Cambridge flights.

Travel Planning Made Easy

We help take some of the anxiety out of your Seattle to Cambridge flights with free flight alerts. We will let you know of flight changes and delays to your flights from Seattle to Cambridge by email, voicemail, or text messages to your mobile phone. Alerts can also be sent to up to six other contacts to keep family and business teams informed.

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Orbitz lets you find the best deals on Seattle to Cambridge flights while on the go, with our easy-to-use Android and iPhone mobile apps. Easily check flight status, gate numbers, and other flight details all in one place with our app—which is great when you are in a hurry. You can use the apps to access great mobile deals on flights and amazing hotel rooms.

Frequently asked questions

What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.