$300 Cheap Flights from Syracuse (SYR) to London (LHR)

View $300 flight on Fri, Nov 14, 2025Opens in a new window

Popular airlines from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR)

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Cheap Flights from Syracuse to London (SYR-LHR)

Prices were available within the past 7 days and start at $300 for one-way flights and $529 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 11 - Tue, Dec 16
SYR
Syracuse
LHR
London
$529 Roundtrip, found 1 day ago
$529
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 11 from Syracuse to London, returning Tue, Dec 16, priced at $529 found 1 day ago
American Airlines
Tue, Aug 26 - Mon, Sep 1
SYR
Syracuse
LHR
London
$530 Roundtrip, found 4 days ago
$530
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Aug 26 from Syracuse to London, returning Mon, Sep 1, priced at $530 found 4 days ago
American Airlines
Thu, Dec 11 - Tue, Dec 16
SYR
Syracuse
LHR
London
$533 Roundtrip, found 1 day ago
$533
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Dec 11 from Syracuse to London, returning Tue, Dec 16, priced at $533 found 1 day ago
American Airlines
Wed, Nov 19 - Sun, Nov 23
SYR
Syracuse
LHR
London
$535 Roundtrip, found 5 days ago
$535
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 19 from Syracuse to London, returning Sun, Nov 23, priced at $535 found 5 days ago
JetBlue Airways
Mon, Sep 15 - Fri, Sep 19
SYR
Syracuse
LHR
London
$549 Roundtrip, found 19 hours ago
$549
Roundtrip
found 19 hours ago
Select JetBlue Airways flight, departing Mon, Sep 15 from Syracuse to London, returning Fri, Sep 19, priced at $549 found 19 hours ago
British Airways
Wed, Sep 24 - Wed, Oct 1
SYR
Syracuse
LHR
London
$579 Roundtrip, found 4 days ago
$579
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Sep 24 from Syracuse to London, returning Wed, Oct 1, priced at $579 found 4 days ago
Virgin Atlantic
Mon, Oct 6 - Wed, Oct 15
SYR
Syracuse
LHR
London
$650 Roundtrip, found 2 days ago
$650
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Mon, Oct 6 from Syracuse to London, returning Wed, Oct 15, priced at $650 found 2 days ago
Delta
Wed, Sep 24 - Wed, Oct 1
SYR
Syracuse
LHR
London
$652 Roundtrip, found 4 days ago
$652
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 24 from Syracuse to London, returning Wed, Oct 1, priced at $652 found 4 days ago
United
Tue, Aug 26 - Mon, Sep 1
SYR
Syracuse
LHR
London
$679 Roundtrip, found 4 days ago
$679
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 26 from Syracuse to London, returning Mon, Sep 1, priced at $679 found 4 days ago
Scandinavian Airlines
Tue, Sep 9 - Tue, Sep 16
SYR
Syracuse
LHR
London
$686 Roundtrip, found 13 hours ago
$686
Roundtrip
found 13 hours ago
Select Scandinavian Airlines flight, departing Tue, Sep 9 from Syracuse to London, returning Tue, Sep 16, priced at $686 found 13 hours ago

Find the cheapest month to fly from Syracuse (SYR) to London (LHR)

February is typically the cheapest month to fly

From $575 - $832 per traveler.

Graph displaying average flight prices per month

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $843
LGW
Gatwick
Average driving time to city center52 min
Flights from $843
Flights from Syracuse (SYR) to London (LHR)
Origin airport
Hancock Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$528
Distance
3431 mi

Syracuse to London Flights

The cheapest times to fly from Syracuse to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Syracuse to London are during the month of December. You can find some of the cheapest flights from Syracuse to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Syracuse to London

Sunday is one of the best days to book for cheap flights from Syracuse to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Syracuse to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Syracuse to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $300 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Syracuse to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Syracuse to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR) cost?
Discover the latest flight deals from SYR to LHR by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SYR to LHR?
The cheapest flights from SYR to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SYR to LHR?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SYR to LHR. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR)?
You'll need to hop on a flight with a layover when traveling from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SYR to LHR?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR)?
Select a flight from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR) last-minute?
Last-minute fares from SYR to LHR are usually more expensive. To lock in the best rates, start looking for flights ahead of time. That being said, if you can play around with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book a SYR to LHR flight and hotel package?
Booking a SYR to LHR flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hancock Intl. Airport (SYR) to Heathrow Airport (LHR)?
If you booked your SYR to LHR flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.