$500 Cheap flight deals from Seattle (SEA) to Cambridge (LON)

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Airfares from $500 One Way, $914 Round Trip from Seattle to Cambridge

Prices starting at $914 for return flights and $500 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.

Fri, Apr 10 - Sat, May 2
SEA
Seattle
STN
London
$914 Roundtrip, found 3 days ago
$914
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Fri, Apr 10 from Seattle to London, returning Sat, May 2, priced at $914 found 3 days ago
Fri, Apr 17 - Sun, Apr 26
SEA
Seattle
STN
London
$1,113 Roundtrip, found 3 days ago
$1,113
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Fri, Apr 17 from Seattle to London, returning Sun, Apr 26, priced at $1,113 found 3 days ago
Sat, May 16 - Sat, Jun 6
SEA
Seattle
STN
London
$1,212 Roundtrip, found 5 days ago
$1,212
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Sat, May 16 from Seattle to London, returning Sat, Jun 6, priced at $1,212 found 5 days ago
Thu, Jun 4 - Sat, Jun 27
SEA
Seattle
STN
London
$2,031 Roundtrip, found 6 days ago
$2,031
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Thu, Jun 4 from Seattle to London, returning Sat, Jun 27, priced at $2,031 found 6 days ago
Fri, Jun 5 - Sat, Jun 27
SEA
Seattle
STN
London
$2,071 Roundtrip, found 6 days ago
$2,071
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Fri, Jun 5 from Seattle to London, returning Sat, Jun 27, priced at $2,071 found 6 days ago

Cambridge economy flight packages

Price found within the past 48 hours. Click for updated prices.
Clayton Hotel Cambridge
4.0-star property

Clayton Hotel Cambridge

9.2/10 Wonderful! (1,004 reviews)

Nov 14 - Nov 17

3 night stay

Seattle (SEA) to Cambridge (CBG)

Icelandair • Non-stop roundtrip • Coach
Price was $983, price is now $935 per person
$935
per person
found 1 day ago
Close to rail station, grocery stores and restaurants. Their breakfast buffet had more than enough options and the food was very good. Staff was welcoming and professional.

Reviewed on Apr 20, 2025

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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 has your discount air ticket deals for flights from Seattle to Cambridge. The guaranteed low prices from flights and hotels to car rentals and vacation packages make Orbitz the perfect travel website for budget trip planning.

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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.

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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.