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Cheap flights from Saint John to the United Kingdom from C$ 511

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — LHR
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from St John to United Kingdom
Explore the most affordable flight options available from St John to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Mon 11/54:30 p.m.
YSJ
-
LHR
1 stop13h 30m
Air Canada
Wed 20/58:40 a.m.
LHR
-
YSJ
2 stops35h 00m
Air Canada
Deal found 7/3C$ 1,070
Mon 18/54:30 p.m.
YSJ
-
LHR
1 stop13h 30m
Air Canada
Wed 27/58:40 a.m.
LHR
-
YSJ
2 stops35h 00m
Air Canada
Deal found 8/3C$ 1,075
Fri 22/54:30 p.m.
YSJ
-
LHR
1 stop10h 00m
Air Canada
Tue 26/56:00 a.m.
LHR
-
YSJ
2 stops37h 40m
Air Canada
Deal found 8/3C$ 1,078
Sun 28/612:50 p.m.
YSJ
-
GLA
2 stops28h 30m
Multiple Airlines
Tue 7/78:35 a.m.
GLA
-
YSJ
2 stops30h 55m
Multiple Airlines
Deal found 8/3C$ 1,728
Fri 26/610:45 a.m.
YSJ
-
LGW
2 stops17h 10m
Multiple Airlines
Tue 7/78:50 a.m.
LGW
-
YSJ
3 stops34h 55m
Multiple Airlines
Deal found 10/3C$ 1,822
Tue 19/512:50 p.m.
YSJ
-
GLA
2 stops23h 55m
Multiple Airlines
Tue 2/69:30 a.m.
GLA
-
YSJ
2 stops18h 22m
Multiple Airlines
Deal found 6/3C$ 9,158

Find flight deals from St John to United Kingdom

Keep the following information in mind while searching for St John to United Kingdom flight deals. Data was last updated 11 March 2026.

Round-trip from

C$ 1,070

One-way from

C$ 511

Popular in

December

Cheapest in

March

Average price

C$ 1,066
Air Canada
  • Air Canada
  • 11/5-20/5
  • 3 total stops
  • 48h 30m total
  • Saint John to United Kingdom
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 24h 50m total
  • Saint John to United Kingdom
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St John to United Kingdom 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 629,999 searches. Data last updated 11 March 2026.
Use the filters below to find and compare flights from Saint John to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 11/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 20/5

8:40 a.m.-3:40 p.m.

2 stops35h 00m

C$ 1,070

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 18/5

4:30 p.m.-10:00 a.m.

1 stop13h 30m

London Heathrow

Wed 27/5

8:40 a.m.-3:40 p.m.

2 stops35h 00m

C$ 1,075

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Fri 22/5

4:30 p.m.-6:30 a.m.

1 stop10h 00m

London Heathrow

Tue 26/5

6:00 a.m.-3:40 p.m.

2 stops37h 40m

C$ 1,078

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 20/4

11:55 a.m.-6:45 a.m.

2 stops38h 50m

London Heathrow

Mon 27/4

4:40 p.m.-11:15 a.m.

2 stops46h 35m

C$ 1,244

Saint JohnGlasgow

YSJ - GLA

YSJGLA

Saint John

Sun 28/6

12:50 p.m.-9:20 p.m.

2 stops28h 30m

Glasgow Intl

Tue 7/7

8:35 a.m.-11:30 a.m.

2 stops30h 55m

C$ 1,728

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Fri 26/6

10:45 a.m.-7:55 a.m.

2 stops17h 10m

London Gatwick

Tue 7/7

8:50 a.m.-3:45 p.m.

3 stops34h 55m

C$ 1,822
Quickest round-trip

Saint JohnGlasgow

YSJ - GLA

YSJGLA

Saint John

Tue 19/5

12:50 p.m.-4:45 p.m.

2 stops23h 55m

Glasgow Intl

Tue 2/6

9:30 a.m.-11:52 p.m.

2 stops18h 22m

C$ 9,158
Cheapest one-way

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Mon 20/4

10:45 a.m.-3:35 p.m.

2 stops24h 50m

C$ 511

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Mon 20/4

10:45 a.m.-10:00 p.m.

2 stops31h 15m

C$ 511

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Tue 21/4

11:55 a.m.-8:25 p.m.

3 stops28h 30m

C$ 808

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from St John to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from St John with our price prediction graph.
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 the United Kingdom

What is the cheapest month to book a flight from Saint John to United Kingdom?

Currently, May is the cheapest month in which you can book a flight from Saint John to United Kingdom (average of C$ 934). Flying from Saint John to United Kingdom in January is currently the most expensive (average of C$ 1,320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 11 March 2026.
Read reviews from past customers who have flown Air Canada from Saint John to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,800 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
6.0
Good

Paula,Mar 2026

YVR - PSP

Everything was OK, but we waited on the tarmac for an hour and 20 minutes after landing because there was no available gate. This is a daily occurrence at the Palm Springs airport, and happens with Air Canada and WestJet constantly.
Air Canada
7.1
Good
10,800 reviews
Air Canada
7.1
Good
10,800 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.3

Entertainment

6.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
6.0
Good

Paula,Mar 2026

YVR - PSP

Everything was OK, but we waited on the tarmac for an hour and 20 minutes after landing because there was no available gate. This is a daily occurrence at the Palm Springs airport, and happens with Air Canada and WestJet constantly.

Related info for your journey

Find useful and relevant information for your journey from St John to United Kingdom. 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 United Kingdom?

    Located just 15.1 km from the city centre, Saint John (YSJ) is the airport most travellers will use when flying to United Kingdom from Saint John.

  • How long is the flight from Saint John to United Kingdom?

    For as low as C$ 1,070, Air Canada can have you in United Kingdom from Saint John in 13h 30m. The distance from Saint John to United Kingdom is about 4712 km.

  • What are the most popular routes from Saint John to United Kingdom?

    The most popular route from Saint John to United Kingdom is Saint John - London Heathrow. You may also consider Saint John - Glasgow Intl or Saint John - London Gatwick.

  • Can I find deals for flights from St John to United Kingdom that include hotel bookings?

    Yes. In addition to deals on St John to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St John to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to United Kingdom.

  • Can I find deals for business class flights from St John to United Kingdom?

    Yes. Cheapflights offers flight deals from St John to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Saint John to United Kingdom?

    Currently, May is the cheapest month in which you can book a flight from Saint John to United Kingdom (average of C$ 934). Flying from Saint John to United Kingdom in January is currently the most expensive (average of C$ 1,320). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St John to United Kingdom

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Top airline flying from St John to United Kingdom

Discover the top airline that operate flights from St John to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,148AverageC$ 1,257FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from St John to United Kingdom?

When you search for this flight from St John to United Kingdom, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Yes, we can. To see specific flights from St John to United Kingdom with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St John to United Kingdom become cheaper?

Yes, Cheapflights offers price alerts on St John to United Kingdom flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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