Cheap flights from Saint John to London from C$ 844
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — LON
10 Dec — 17 Dec1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheap flight deals from St John to London
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from St John to London
Explore the most affordable flight options available from St John to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 November 2026.
Wed 11/115:20 a.m. -
1 stop23h 10m
Wed 18/119:00 a.m. -
2 stops18h 28m
Deal found 7/11C$ 1,171
Tue 8/1211:05 a.m. -
1 stop16h 05m
Fri 11/121:00 p.m. -
1 stop25h 25m
Deal found 7/11C$ 1,172
Tue 8/1211:05 a.m. -
2 stops19h 20m
Fri 11/124:20 p.m. -
2 stops46h 05m
Deal found 7/11C$ 1,246
Thu 10/1211:05 a.m. -
1 stop16h 05m
Wed 30/129:00 a.m. -
2 stops29h 25m
Deal found 5/11C$ 1,330
Best flights from St John to London
Discover carefully curated flight deals from St John to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 10 November 2026.
Tue 8/1211:05 a.m. -
1 stop16h 05m
Fri 11/121:00 p.m. -
1 stop25h 25m
Deal found 7/11C$ 1,172
Tue 8/1211:05 a.m. -
2 stops19h 20m
Fri 11/124:20 p.m. -
2 stops46h 05m
Deal found 7/11C$ 1,246
Fri 25/125:20 a.m. -
1 stop26h 00m
Wed 10/29:00 a.m. -
2 stops18h 54m
Deal found 9/11C$ 1,357
Thu 10/1211:05 a.m. -
1 stop16h 05m
Wed 30/129:00 a.m. -
2 stops29h 25m
Deal found 5/11C$ 1,330
Thu 10/1211:05 a.m. -
1 stop16h 05m
Thu 31/121:00 p.m. -
1 stop25h 25m
Deal found 5/11C$ 1,381
Thu 24/1211:05 a.m. -
2 stops19h 20m
Mon 8/21:00 p.m. -
1 stop25h 25m
Deal found 9/11C$ 1,381
Last-minute flights from St John to London
Discover last-minute flight deals from St John to London. Data last updated 10 November 2026 and is based on user searches.
Wed 11/115:20 a.m. -
1 stop23h 10m
Wed 18/119:00 a.m. -
2 stops18h 28m
Deal found 7/11C$ 1,171
Tue 8/1211:05 a.m. -
1 stop16h 05m
Fri 11/121:00 p.m. -
1 stop25h 25m
Deal found 7/11C$ 1,172
Tue 8/1211:05 a.m. -
2 stops19h 20m
Fri 11/124:20 p.m. -
2 stops46h 05m
Deal found 7/11C$ 1,246
Thu 10/1211:05 a.m. -
1 stop16h 05m
Wed 30/129:00 a.m. -
2 stops29h 25m
Deal found 5/11C$ 1,330
One-way flights from St John to London
Search for one-way flight options from St John to London. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.
Thu 18/211:05 a.m. -
2 stops21h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/11C$ 844
Thu 18/25:15 a.m. -
1 stop21h 15m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/11C$ 854
Thu 24/1211:05 a.m. -
2 stops29h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 9/11C$ 1,226
Tue 22/125:35 p.m. -
2 stops47h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/11C$ 1,384
Mon 21/1211:05 a.m. -
2 stops29h 55m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/11C$ 1,433
Sun 20/125:35 p.m. -
2 stops38h 25m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 5/11C$ 1,481
Tue 22/1211:05 a.m. -
3 stops18h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 7/11C$ 1,661
Mon 21/1211:05 a.m. -
3 stops19h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 6/11C$ 2,043
Find flight deals from St John to London
Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 November 2026.
Customize your flight search to find flights from St John to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 10 November 2026.
Use the filters below to find and compare flights from Saint John to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 18/2
11:05 a.m.-12:50 p.m.
2 stops21h 45m
London Heathrow
Wed 31/12
12:00 a.m.-7:00 p.m.
Nonstop0h 00m
C$ 844
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 18/2
5:15 a.m.-6:30 a.m.
1 stop21h 15m
London Heathrow
Wed 31/12
12:00 a.m.-7:00 p.m.
Nonstop0h 00m
C$ 854
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Tue 8/12
11:05 a.m.-7:10 a.m.
1 stop16h 05m
London Heathrow
Fri 11/12
1:00 p.m.-10:25 a.m.
1 stop25h 25m
C$ 1,172
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 24/12
5:35 p.m.-6:30 a.m.
1 stop32h 55m
London Heathrow
Wed 31/12
12:00 a.m.-7:00 p.m.
Nonstop0h 00m
C$ 1,232
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Tue 8/12
11:05 a.m.-10:25 a.m.
2 stops19h 20m
London Heathrow
Fri 11/12
4:20 p.m.-10:25 a.m.
2 stops46h 05m
C$ 1,246
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 10/12
11:05 a.m.-7:10 a.m.
1 stop16h 05m
London Heathrow
Wed 30/12
9:00 a.m.-10:25 a.m.
2 stops29h 25m
C$ 1,330
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Fri 25/12
5:20 a.m.-11:20 a.m.
1 stop26h 00m
London Heathrow
Wed 10/2
9:00 a.m.-11:54 p.m.
2 stops18h 54m
C$ 1,357
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 10/12
11:05 a.m.-7:10 a.m.
1 stop16h 05m
London Heathrow
Thu 31/12
1:00 p.m.-10:25 a.m.
1 stop25h 25m
C$ 1,381
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Thu 24/12
11:05 a.m.-10:25 a.m.
2 stops19h 20m
London Heathrow
Mon 8/2
1:00 p.m.-10:25 a.m.
1 stop25h 25m
C$ 1,381
Saint JohnLondon
YSJ Saint John - LHR London Heathrow
YSJLHR
Saint John
Tue 22/12
5:35 p.m.-9:00 p.m.
2 stops47h 25m
London Heathrow
Wed 31/12
12:00 a.m.-7:00 p.m.
Nonstop0h 00m
C$ 1,384
Flights are sorted by cheapest round-trip flights first.
Deals found on 9/11
Showing 1-10 of 14 resultsSorted by cheapest first
1
2
Best time to book a flight from St John to London
Have a flexible travel schedule? Discover the best time to fly to London from St John with our price prediction graph.
YSJ-LON
YSJ-LHR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Saint John to London
YSJ-LON
YSJ-LHR
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from St John to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Saint John to London?
Located just 15.1 km from the city centre, Saint John is the airport most travellers will use when flying to London from Saint John. Booking flights from Saint John (YSJ) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.
How long is the flight from Saint John to London?
Airlines like Air Canada fly from Saint John to London in about 16h 05m. The time it takes to get you to your destination can typically vary by up to . Saint John and London are separated by a distance of 4712 km.
Can I find deals for flights from St John to London that include hotel bookings?
Yes. In addition to deals on St John to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St John to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to London.
Can I find deals for business class flights from St John to London?
Yes. Cheapflights offers flight deals from St John to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 November 2026.
Browse through other flights departing from St John. Flights are based on user searches made on Cheapflights and were last updated on 10 November 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from St John to London?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from St John today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from St John to London?
Cheapflights simply makes it quick and affordable to book flights from St John to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from St John to London with no change fees?
Certainly. Search results for flights to London from St John shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from St John to London become cheaper?
Of course! You can now track prices for flights from St John to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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