
Book Cheap Aer Lingus flight from London (LHR) to San Francisco (SFO) from CA $573
Find The Best Day to Book a Cheap Aer Lingus Flights From London to San Francisco
Cheapest Aer Lingus Flights from London (LHR) to San Francisco (SFO)
The cheapest flights to San Francisco Intl. found within the past 7 days were CA $875 round trip and CA $573 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great Aer Lingus flight from LHR to SFO
To find a great deal on Aer Lingus flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying Aer Lingus London to San Francisco gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with Aer Lingus between London and San Francisco
Aer Lingus has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from London to San Francisco with Aer Lingus are February.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your Aer Lingus flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 43 |
| DUB | IRL | Dublin | 16 |
| LHR | GBR | Heathrow | 7 |
| BOS | USA | Logan Intl. | 7 |
| JFK | USA | John F. Kennedy Intl. | 5 |
| MSN | USA | Dane County Regional | 4 |
| IAH | USA | George Bush Intercontinental | 4 |
| LAX | USA | Los Angeles Intl. | 3 |
| STL | USA | Lambert-St. Louis Intl. | 3 |
| GRR | USA | Gerald R. Ford Intl. | 3 |
Travelers ❤️ these 🏨 after their flight to San Francisco

SFO El Rancho Inn SureStay Collection by Best Western
Yes
Reviewed on Nov 2, 2025

La Quinta Inn & Suites by Wyndham San Francisco Airport West
The room is very clean, the staff are very friendly. I wish the breakfast hour can be extended from 7 am 6am. Given said that, there are some food available for the people who need to catch early flights.
Reviewed on Nov 6, 2025

Aloft San Francisco Airport
The staff was courteous and the rooms were clean. The proximity to the airport was key as well.
Reviewed on Nov 2, 2025
Want more than a(n) Aer Lingus Flight from London to San Francisco?
Popular Aer Lingus Flight Routes from LHR
Domestic
- Calgary to London (YYC - LHR)
- Toronto to Rome (YYZ - FCO)
- Toronto to Dublin (YYZ - DUB)
- Montreal to Rome (YUL - FCO)
- Toronto to London (YYZ - LHR)
- Calgary to Paris (YYC - CDG)
- Montreal to Paris (YUL - CDG)
- Toronto to Frankfurt (YYZ - FRA)
- Toronto to Barcelona (YYZ - BCN)
- Montreal to Málaga (YUL - AGP)
International
- Toronto to Barcelona (YYZ - BCN)
- Toronto to Madrid (YYZ - MAD)
- Montreal to Lisbon (YUL - LIS)
- Montreal to Rome (YUL - FCO)
- Vancouver to Paris (YVR - CDG)
- Montreal to Málaga (YUL - AGP)
- Montreal to Madrid (YUL - MAD)
- Montreal to Paris (YUL - CDG)
- Toronto to Dublin (YYZ - DUB)
- Vancouver to Paris (YVR - CDG)
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