SYR - LHR

$311 Find Cheap Flights from Syracuse to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Syracuse to Heathrow departing on 3/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Syracuse to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Syracuse to London.
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Everything you should know

Cheapest round-trip
$633
Overall average: $822
United Airlines
Tue 3/17Tue 3/24
SYR - LHR • 1 stop
Cheapest one-way
$311
Typical prices: $428-$446
JetBlue
Wed 3/18
SYR - LHR • 1 stop
Top airlines
United Airlines
Cheapest • from $633 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 7% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 27% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Syracuse to Heathrow (SYR-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Syracuse to Heathrow 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.

Recent round-trip flight deals from Syracuse to Heathrow

Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
6:15 am - 8:35 pm
SYR
-
LHR
10h 20m
1 stop
United Airlines Logo
9:00 am - 9:42 am
LHR
-
SYR
28h 42m
2 stops
$633United Airlines
Wed, Mar 18 - Wed, Mar 25
United Airlines Logo
6:15 am - 8:35 pm
SYR
-
LHR
10h 20m
1 stop
United Airlines Logo
1:25 pm - 12:23 pm
LHR
-
SYR
26h 58m
2 stops
$641United Airlines
Mon, May 11 - Tue, May 19
British Airways Logo
4:15 pm - 8:00 am
SYR
-
LHR
10h 45m
1 stop
British Airways Logo
6:10 am - 7:07 pm
LHR
-
SYR
17h 57m
2 stops
$647British Airways
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
6:00 am - 8:35 am
SYR
-
LHR
21h 35m
2 stops
United Airlines Logo
6:55 am - 11:50 pm
LHR
-
SYR
21h 55m
2 stops
$649United Airlines
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
6:30 am - 10:00 am
SYR
-
LHR
22h 30m
2 stops
United Airlines Logo
7:25 am - 9:50 am
LHR
-
SYR
31h 25m
2 stops
$652United Airlines
Mon, May 11 - Tue, May 19
British Airways Logo
4:15 pm - 8:00 am
SYR
-
LHR
10h 45m
1 stop
British Airways Logo
8:40 pm - 9:33 pm
LHR
-
SYR
29h 53m
2 stops
$658British Airways
Wed, Mar 18 - Wed, Mar 25
United Airlines Logo
6:15 am - 8:35 pm
SYR
-
LHR
10h 20m
1 stop
United Airlines Logo
12:50 pm - 8:18 pm
LHR
-
SYR
11h 28m
1 stop
$661United Airlines
Wed, Mar 4 - Wed, Mar 11
JetBlue Logo
6:00 am - 6:55 am
SYR
-
LHR
19h 55m
1 stop
JetBlue Logo
12:20 pm - 11:59 pm
LHR
-
SYR
15h 39m
1 stop
$662JetBlue
Wed, Mar 18 - Wed, Mar 25
Delta Logo
9:55 am - 7:05 am
SYR
-
LHR
17h 10m
2 stops
Delta Logo
8:00 pm - 11:34 am
LHR
-
SYR
19h 34m
2 stops
$666Delta
Wed, Mar 18 - Wed, Mar 25
Air Canada Logo
10:30 am - 6:30 am
SYR
-
LHR
40h 00m
2 stops
Air Canada Logo
1:25 pm - 9:55 am
LHR
-
SYR
24h 30m
2 stops
$673Air Canada
Booking Insights

KAYAK's insights & trends for Syracuse to Heathrow flights

Get data-powered insights and trends into flights from Syracuse to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Syracuse to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Syracuse to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Syracuse to London Heathrow Airport is October, where tickets cost $639 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,174 and $1,118 respectively.

How far in advance should I book a flight from Syracuse to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Syracuse to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Syracuse to London Heathrow Airport, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$311
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Syracuse to London Heathrow Airport

When to book flights from Syracuse to Heathrow

Are your dates flexible? Find out the best times to travel from Syracuse to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Syracuse to London Heathrow Airport flights

  • What is the cheapest flight from Syracuse to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Syracuse to London Heathrow Airport was $311 for a one-way ticket and $633 for a round-trip.

  • Do I need a passport to fly between Syracuse and London Heathrow Airport?

    Yes

  • Which aircraft models fly most regularly from Syracuse to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Syracuse to London Heathrow Airport?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Syracuse and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Syracuse to London, Delta or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from Syracuse to London are Delta and Virgin Atlantic. With an average price for the route of $739 and an overall rating of 7.9, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $812 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Syracuse to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Syracuse to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Syracuse to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Syracuse is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Syracuse to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Syracuse with another airline. Booking your flights between Syracuse and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Syracuse to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Syracuse up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Syracuse to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Syracuse to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Syracuse to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8208 reviews
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

boarded at 5:30 pm, pushed away from gate at 6pm ... takeoff was not until ~6:45pm; disappointing

4.0 OkayLawrence, Feb 2026
LGA - JAX
Read more Delta reviews

boarded at 5:30 pm, pushed away from gate at 6pm ... takeoff was not until ~6:45pm; disappointing

Smooth boarding, pleasant and professional lady checking us in. Crew service was excellent, again pleasant, but professional. Nice touch-down on landing! Thank you Delta. 💗

Paid for wifi that didn't work. No plug in seat to work. No entertainment.

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

The flight was comfortable and uneventful, which is what I desire

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

Everything you need to know for your flight from Syracuse to Heathrow

Information on your arrival and departure airports