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Cheap flights from Saint John to the United Kingdom from C$ 523

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — LHR
4 Aug — 11 Aug1
1 adult

Cheap 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 30 July 2025.

Round-trip from

C$ 1,003

One-way from

C$ 523

Popular in

December

Cheapest in

March

Average price

C$ 1,266
United Airlines
  • United Airlines
  • 11/9-18/9
  • 4 total stops
  • 45h 04m total
  • Saint John to United Kingdom
Search Deals
17/9
  • 17/9
  • 1 total stop
  • 17h 25m total
  • Saint John to United Kingdom
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from St John to United Kingdom

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 30 July 2025.

Thu 16/1011:35 a.m.YSJ - LHR
2 stops14h 45mUnited Airlines
Sun 9/111:35 p.m.LHR - YSJ
2 stops48h 25mUnited Airlines
Deal found 30/7C$ 999
Thu 11/912:00 p.m.YSJ - LGW
2 stops25h 15mMultiple Airlines
Thu 18/910:45 a.m.LGW - YSJ
1 stop9h 00mMultiple Airlines
Deal found 28/7C$ 1,079
Thu 16/1011:35 a.m.YSJ - LHR
1 stop18h 00mAir Canada
Sun 9/119:00 a.m.LHR - YSJ
2 stops29h 00mAir Canada
Deal found 30/7C$ 1,127
Thu 11/912:00 p.m.YSJ - GLA
2 stops27h 10mMultiple Airlines
Thu 18/98:35 a.m.GLA - YSJ
1 stop29h 25mMultiple Airlines
Deal found 28/7C$ 1,257

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 30 July 2025.
Use the filters below to find and compare flights from Saint John to the United Kingdom that are best for you.

Fly from

St John

Fly to

United Kingdom

Route

Depart

Return

Price

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 16/10

11:35 a.m.-6:20 a.m.

2 stops14h 45m

London Heathrow

Sun 9/11

1:35 p.m.-10:00 a.m.

2 stops48h 25m

C$ 999

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Thu 11/9

12:00 p.m.-5:15 p.m.

2 stops25h 15m

London Gatwick

Thu 18/9

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

1 stop9h 00m

C$ 1,079

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 16/10

11:35 a.m.-9:35 a.m.

1 stop18h 00m

London Heathrow

Sun 9/11

9:00 a.m.-10:00 a.m.

2 stops29h 00m

C$ 1,127

Saint JohnGlasgow

YSJ - GLA

YSJGLA

Saint John

Thu 11/9

12:00 p.m.-7:10 p.m.

2 stops27h 10m

Glasgow Intl

Thu 18/9

8:35 a.m.-10:00 a.m.

1 stop29h 25m

C$ 1,257

Saint JohnLondon

YSJ - LGW

YSJLGW

Saint John

Wed 17/9

12:00 p.m.-9:25 a.m.

1 stop17h 25m

C$ 523

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 18/9

12:00 p.m.-10:25 p.m.

2 stops30h 25m

C$ 612

Saint JohnLondon

YSJ - LHR

YSJLHR

Saint John

Thu 11/9

6:40 p.m.-11:50 a.m.

1 stop13h 10m

C$ 699

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

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, January is the cheapest month in which you can book a flight from Saint John to United Kingdom (average of C$ 560). Flying from Saint John to United Kingdom in July is currently the most expensive (average of C$ 857). 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 30 July 2025.
Read reviews from past customers who have flown United Airlines and 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.
United Airlines
7.4
Good
8,896 reviews
Check prices

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
9,837 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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.

  • 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 Gatwick. You may also consider Saint John - London Heathrow or Saint John - Glasgow Intl.

  • 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, January is the cheapest month in which you can book a flight from Saint John to United Kingdom (average of C$ 560). Flying from Saint John to United Kingdom in July is currently the most expensive (average of C$ 857). 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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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 30 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 1,152AverageC$ 1,201FlexibilityNo 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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Can Cheapflights find flights from St John to United Kingdom with no change fees?

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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