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C$ 817+ Cheap flights to Portsmouth

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 28/12. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
13 dic. — 20 dic.1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

Find the latest flights to Portsmouth in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 13 noviembre 2025.

Round-trip from

C$ 756

One-way from

C$ 817

Popular in

December

Cheapest in

February

Average price

C$ 841
Icelandair
  • Icelandair
  • 17/1-1/2
  • 2 total stops
  • 29h 50m total
  • Toronto to London
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28/12
  • 28/12
  • 2 total stops
  • 36h 25m total
  • Toronto to Portsmouth
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Highest demand for flights based on searches. 6% potential increase in price (C$ 59 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 13 noviembre 2025.

mié. 26/115:25 p.m.YYZ - SOU
1 stop10h 20mBritish Airways
mié. 3/127:55 p.m.SOU - YYZ
2 stops23h 55mBritish Airways
Deal found 12/11C$ 1,524
sáb. 27/129:15 p.m.YYZ - SOU
1 stop29h 55mKLM
dom. 11/15:45 p.m.SOU - YYZ
2 stops28h 38mKLM
Deal found 11/11C$ 1,558
sáb. 27/125:25 p.m.YYZ - SOU
1 stop10h 20mAer Lingus
dom. 11/18:10 p.m.SOU - YYZ
1 stop24h 45mAer Lingus
Deal found 11/11C$ 1,598
sáb. 27/127:15 p.m.YYZ - SOU
3 stops31h 15mMultiple Airlines
dom. 11/11:25 p.m.SOU - YYZ
3 stops33h 50mMultiple Airlines
Deal found 11/11C$ 1,852
sáb. 20/129:15 p.m.YYZ - SOU
1 stop29h 55mDelta
mar. 6/15:35 p.m.SOU - YYZ
2 stops34h 21mDelta
Deal found 12/11C$ 2,073
sáb. 20/125:25 p.m.YYZ - SOU
1 stop17h 10mBritish Airways
mar. 6/112:25 p.m.SOU - YYZ
1 stop32h 30mBritish Airways
Deal found 12/11C$ 2,209
lun. 22/124:40 p.m.YYZ - SOU
2 stops14h 15mBritish Airways
dom. 28/129:30 a.m.SOU - YYZ
2 stops31h 21mBritish Airways
Deal found 11/11C$ 2,704

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 13 noviembre 2025.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

dom. 10/5

4:45 p.m.-8:50 a.m.

1 stop11h 05m

Southampton Eastleigh

jue. 14/5

5:35 p.m.-7:55 p.m.

1 stop31h 20m

C$ 958

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mar. 17/3

10:15 p.m.-8:20 a.m.

1 stop30h 05m

Southampton Eastleigh

mar. 31/3

9:20 a.m.-3:20 p.m.

2 stops35h 00m

C$ 978

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

jue. 19/3

10:15 p.m.-5:00 p.m.

1 stop14h 45m

Southampton Eastleigh

mié. 25/3

8:40 a.m.-10:55 p.m.

2 stops18h 15m

C$ 981

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mié. 18/3

6:10 p.m.-5:25 p.m.

2 stops19h 15m

Southampton Eastleigh

mar. 31/3

5:35 p.m.-3:20 p.m.

2 stops26h 45m

C$ 1,011

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

lun. 16/3

12:10 p.m.-8:05 a.m.

2 stops15h 55m

Southampton Eastleigh

mar. 31/3

5:35 p.m.-5:24 p.m.

2 stops28h 49m

C$ 1,011

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

dom. 15/3

6:10 p.m.-8:05 a.m.

2 stops33h 55m

Southampton Eastleigh

mié. 25/3

8:40 a.m.-10:55 p.m.

2 stops18h 15m

C$ 1,014

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

lun. 16/3

6:00 a.m.-8:05 a.m.

2 stops22h 05m

Southampton Eastleigh

mié. 25/3

8:40 a.m.-10:55 p.m.

2 stops18h 15m

C$ 1,014

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

mié. 18/3

12:10 p.m.-8:20 a.m.

2 stops16h 10m

Southampton Eastleigh

mié. 25/3

8:40 a.m.-10:55 p.m.

2 stops18h 15m

C$ 1,014

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

jue. 19/3

6:50 p.m.-8:05 a.m.

1 stop9h 15m

Southampton Eastleigh

dom. 29/3

5:35 p.m.-1:20 p.m.

1 stop24h 45m

C$ 1,177

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

dom. 28/12

9:25 p.m.-2:50 p.m.

2 stops36h 25m

C$ 817

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/11

Showing 1-10 of 17 results
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Best time to book a flight to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth 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 to Portsmouth

How long is the flight to Portsmouth?

On average, a flight from Toronto to Portsmouth takes 17 hours 37 minutes. Flights to Portsmouth from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Portsmouth. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Portsmouth should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday at noon, when prices are usually at their highest.

Weekly flight availability to Portsmouth

The most flights from Toronto to Portsmouth are scheduled on a Thursday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airlines flying from Toronto to Portsmouth are KLM, Aer Lingus and Delta.

KLM
KLM
From C$ 1,049
Aer Lingus
Aer Lingus
From C$ 732
Delta
Delta
From C$ 865

What are the cheapest airlines that fly to Portsmouth?

The cheapest airlines flying from Toronto to Portsmouth are Aer Lingus, Delta and KLM.

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated 13 noviembre 2025.
See what other customers who have flown with KLM and Aer Lingus to the United Kingdom have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,410 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,410 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,370 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.7

Comfort

7.7

Boarding

7.8

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, WestJet is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a round-trip flight to Portsmouth?

    A round-trip flight to Portsmouth will typically cost around C$ 877, however they can be found for as little as C$ 175.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Toronto offers the quickest one-way flight (9 hours 20 minutes).

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow Airport Terminal 2-3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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