Find flights
Airlines

C$ 521+ 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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

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 12 December 2025.

Tue 16/1212:15 p.m.YYZ - SOU
2 stops39h 05mDelta
Fri 13/25:35 p.m.SOU - YYZ
2 stops46h 43mDelta
Deal found 9/12C$ 1,331
Thu 11/126:05 a.m.YYZ - SOU
2 stops21h 00mDelta
Wed 18/29:25 a.m.SOU - YYZ
1 stop11h 15mDelta
Deal found 10/12C$ 1,371
Thu 11/126:05 a.m.YYZ - SOU
2 stops21h 00mDelta
Tue 10/29:25 a.m.SOU - YYZ
2 stops18h 17mDelta
Deal found 10/12C$ 1,404
Thu 11/126:05 a.m.YYZ - SOU
2 stops21h 00mDelta
Thu 5/29:00 a.m.SOU - YYZ
1 stop11h 40mDelta
Deal found 10/12C$ 1,420
Mon 15/124:44 p.m.YYZ - SOU
2 stops21h 56mBritish Airways
Tue 17/24:05 p.m.SOU - YYZ
1 stop28h 50mBritish Airways
Deal found 10/12C$ 1,430
Wed 10/125:50 p.m.YYZ - SOU
1 stop18h 35mDelta
Wed 4/29:25 a.m.SOU - YYZ
1 stop11h 15mDelta
Deal found 10/12C$ 1,444
Wed 10/126:00 p.m.YYZ - SOU
2 stops42h 00mDelta
Fri 6/25:35 p.m.SOU - YYZ
2 stops30h 33mDelta
Deal found 10/12C$ 1,454
Mon 15/124:44 p.m.YYZ - SOU
2 stops21h 56mBritish Airways
Sun 15/28:25 p.m.SOU - YYZ
2 stops24h 30mBritish Airways
Deal found 10/12C$ 1,456
Mon 15/1212:15 p.m.YYZ - SOU
2 stops23h 45mDelta
Tue 17/25:35 p.m.SOU - YYZ
1 stop27h 05mDelta
Deal found 10/12C$ 1,458
Mon 15/124:44 p.m.YYZ - SOU
2 stops17h 51mBritish Airways
Thu 12/29:30 a.m.SOU - YYZ
1 stop11h 25mBritish Airways
Deal found 10/12C$ 1,480
Wed 10/125:50 p.m.YYZ - SOU
1 stop18h 35mDelta
Sun 8/25:45 p.m.SOU - YYZ
2 stops28h 38mDelta
Deal found 10/12C$ 1,483
Mon 15/124:44 p.m.YYZ - SOU
2 stops14h 11mBritish Airways
Wed 11/24:05 p.m.SOU - YYZ
1 stop28h 50mBritish Airways
Deal found 10/12C$ 1,489

Find flight deals to Portsmouth

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 12 December 2025.

Round-trip from

C$ 778

One-way from

C$ 521

Popular in

December

Cheapest in

February

Average price

C$ 1,161
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 16/5-23/5
  • 2 total stops
  • 24h 45m total
  • Toronto to London
Search Deals
26/1
  • 26/1
  • 3 total stops
  • 40h 45m total
  • Toronto to Portsmouth
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 12 December 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

Sun 1/2

5:50 p.m.-5:05 p.m.

1 stop18h 15m

Southampton Eastleigh

Thu 5/2

9:00 a.m.-3:40 p.m.

1 stop11h 40m

C$ 939

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 16/12

12:15 p.m.-8:20 a.m.

2 stops39h 05m

Southampton Eastleigh

Fri 13/2

5:35 p.m.-11:18 a.m.

2 stops46h 43m

C$ 1,331

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 15/12

6:00 a.m.-5:00 p.m.

2 stops30h 00m

Southampton Eastleigh

Mon 16/2

5:35 p.m.-7:15 p.m.

1 stop30h 40m

C$ 1,458

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 15/12

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

2 stops23h 45m

Southampton Eastleigh

Tue 17/2

5:35 p.m.-3:40 p.m.

1 stop27h 05m

C$ 1,458

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 15/12

6:00 p.m.-5:00 p.m.

2 stops18h 00m

Southampton Eastleigh

Mon 9/2

9:25 a.m.-10:42 p.m.

2 stops18h 17m

C$ 1,491

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 16/12

6:00 a.m.-8:10 a.m.

2 stops21h 10m

Southampton Eastleigh

Tue 10/2

9:25 a.m.-7:08 p.m.

2 stops14h 43m

C$ 1,491

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 16/12

6:00 a.m.-8:10 a.m.

2 stops21h 10m

Southampton Eastleigh

Wed 11/2

9:25 a.m.-10:42 p.m.

2 stops18h 17m

C$ 1,491

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Mon 15/12

6:00 p.m.-5:00 p.m.

2 stops18h 00m

Southampton Eastleigh

Sun 8/2

5:45 p.m.-5:23 p.m.

2 stops28h 38m

C$ 1,491

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 16/12

6:00 a.m.-8:10 a.m.

2 stops21h 10m

Southampton Eastleigh

Tue 17/2

9:25 a.m.-7:09 p.m.

2 stops14h 44m

C$ 1,491

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Tue 16/12

6:00 a.m.-8:10 a.m.

2 stops21h 10m

Southampton Eastleigh

Mon 9/2

9:25 a.m.-10:42 p.m.

2 stops18h 17m

C$ 1,491

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 21 results
1
2
3

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 15 hours 40 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 Wednesday (38 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 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$ 989
Aer Lingus
Aer Lingus
From C$ 1,024
Delta
Delta
From C$ 851

What are the cheapest airlines that fly to Portsmouth?

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

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 12 December 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
1,432 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Crew

8.3

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Crew

8.3

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Aer Lingus
7.2
Good
1,394 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Overall

7.7

Comfort

7.6

Boarding

7.8

Crew

8.3

Food

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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$ 1,270, however they can be found for as little as C$ 131.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Portsmouth by cabin class

Find flights to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Fly with Cheapflights

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 to Portsmouth?

When you search for this flight to Portsmouth, 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 best flight for you.

Why should you use Cheapflights to find cheap flight tickets to Portsmouth?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Portsmouth.

Can Cheapflights find flights to Portsmouth with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Portsmouth flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to Portsmouth become cheaper?

Yes! Start tracking prices for Portsmouth flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.