What is the cheapest month to fly to Portsmouth?

January is currently the cheapest month to fly to Portsmouth . At this moment in time July is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

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$ 175, however they can be found for as little as C$ 130.

Where does the fastest flight to Portsmouth depart from?

For those looking to save time traveling to Portsmouth, Halifax Intl offers the quickest one-way flight (9 hours 25 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 is the closest property to London Heathrow (0.0 km away from London Heathrow).

C$ 316+ Cheap Flights to Portsmouth

Flights to Portsmouth in 2025

Round-trip from	C$ 725
One-way from	C$ 767
Popular in	December
Cheapest in	February
Average price	C$ 997

Air Canada
28/9-7/10
3 total stops
24h 05m total
Toronto to London

Search Deals

27/9
3 total stops
18h 25m total
Toronto to Portsmouth

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (C$ 47 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals to Portsmouth

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 15 August 2025.

Tue 21/1010:10 p.m.YYZ - SOU

1 stop13h 50mDelta

Mon 27/106:05 p.m.SOU - YYZ

1 stop30h 10mDelta

Deal found 12/8C$ 812

Sat 22/115:50 p.m.YYZ - SOU

1 stop10h 00mDelta

Thu 27/118:50 a.m.SOU - YYZ

1 stop11h 50mDelta

Deal found 13/8C$ 813

Wed 5/1112:10 p.m.YYZ - SOU

2 stops15h 10mDelta

Wed 19/118:40 a.m.SOU - YYZ

1 stop12h 00mDelta

Deal found 13/8C$ 852

Sun 12/104:35 p.m.YYZ - SOU

1 stop11h 10mDelta

Mon 27/108:40 a.m.SOU - YYZ

2 stops35h 29mDelta

Deal found 14/8C$ 853

Wed 8/1010:20 a.m.YYZ - SOU

2 stops17h 25mDelta

Mon 27/106:05 p.m.SOU - YYZ

2 stops33h 00mDelta

Deal found 14/8C$ 885

Wed 5/1110:45 p.m.YYZ - SOU

2 stops13h 40mKLM

Wed 19/118:40 a.m.SOU - YYZ

2 stops16h 55mKLM

Deal found 12/8C$ 973

Mon 29/125:15 p.m.YYZ - SOU

2 stops33h 55mDelta

Tue 6/15:30 p.m.SOU - YYZ

1 stop27h 10mDelta

Deal found 14/8C$ 1,030

Best flights to Portsmouth
Discover carefully curated flight deals to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 August 2025.

Sat 22/115:50 p.m.YYZ - SOU

1 stop10h 00mDelta

Thu 27/118:50 a.m.SOU - YYZ

1 stop11h 50mDelta

Deal found 13/8C$ 813

Wed 5/1112:10 p.m.YYZ - SOU

2 stops15h 10mDelta

Wed 19/118:40 a.m.SOU - YYZ

1 stop12h 00mDelta

Deal found 13/8C$ 852

Sun 23/119:15 p.m.YYZ - SOU

1 stop29h 55mDelta

Thu 27/116:05 p.m.SOU - YYZ

2 stops46h 24mDelta

Deal found 13/8C$ 852

Sun 12/104:35 p.m.YYZ - SOU

1 stop19h 25mDelta

Tue 28/108:40 a.m.SOU - YYZ

2 stops18h 15mDelta

Deal found 14/8C$ 853

Sun 12/104:35 p.m.YYZ - SOU

1 stop19h 25mDelta

Thu 30/106:05 p.m.SOU - YYZ

2 stops33h 00mDelta

Deal found 14/8C$ 853

Sun 12/104:35 p.m.YYZ - SOU

1 stop11h 10mDelta

Sun 26/106:05 p.m.SOU - YYZ

2 stops43h 24mDelta

Deal found 14/8C$ 853

Sun 12/104:35 p.m.YYZ - SOU

1 stop11h 10mDelta

Mon 27/108:40 a.m.SOU - YYZ

2 stops35h 29mDelta

Deal found 14/8C$ 853

Last-minute flights to Portsmouth
Discover last-minute flight deals to Portsmouth. Data last updated 15 August 2025 and is based on user searches.

Tue 19/812:14 p.m.YYZ - SOU

2 stops15h 31mDelta

Fri 19/95:35 p.m.SOU - YYZ

2 stops28h 53mDelta

Deal found 13/8C$ 1,155

Tue 19/86:05 p.m.YYZ - SOU

2 stops16h 10mBritish Airways

Fri 19/99:40 a.m.SOU - YYZ

1 stop11h 10mBritish Airways

Deal found 13/8C$ 1,952

Tue 19/85:20 p.m.YYZ - SOU

1 stop9h 45mBritish Airways

Thu 28/89:40 a.m.SOU - YYZ

2 stops18h 49mBritish Airways

Deal found 14/8C$ 4,285

Wed 20/83:14 p.m.YYZ - SOU

2 stops20h 21mBritish Airways

Mon 15/99:40 a.m.SOU - YYZ

1 stop11h 10mBritish Airways

Deal found 13/8C$ 3,776

Thu 21/85:20 p.m.YYZ - SOU

1 stop10h 20mBritish Airways

Mon 1/99:40 a.m.SOU - YYZ

1 stop11h 10mBritish Airways

Deal found 12/8C$ 2,910

Thu 21/810:05 p.m.YYZ - SOU

2 stops16h 20mBritish Airways

Fri 29/89:40 a.m.SOU - YYZ

2 stops18h 49mBritish Airways

Deal found 13/8C$ 3,900

Thu 21/810:05 p.m.YYZ - SOU

2 stops16h 20mBritish Airways

Sun 31/88:45 a.m.SOU - YYZ

2 stops16h 25mBritish Airways

Deal found 14/8C$ 4,427

Fri 5/912:10 p.m.YYZ - SOU

2 stops15h 35mKLM

Tue 23/99:20 a.m.SOU - YYZ

1 stop15h 35mKLM

Deal found 13/8C$ 1,556

Mon 8/96:29 p.m.YYZ - SOU

2 stops20h 01mBritish Airways

Tue 16/99:10 a.m.SOU - YYZ

1 stop11h 40mBritish Airways

Deal found 13/8C$ 1,565

Sun 14/910:10 p.m.YYZ - SOU

1 stop29h 35mDelta

Sat 27/99:20 a.m.SOU - YYZ

2 stops18h 39mDelta

Deal found 13/8C$ 1,122

Sun 14/95:20 p.m.YYZ - SOU

1 stop10h 50mAer Lingus

Sat 27/99:40 a.m.SOU - YYZ

1 stop11h 10mAer Lingus

Deal found 13/8C$ 1,394

Mon 15/96:29 p.m.YYZ - SOU

2 stops20h 01mBritish Airways

Fri 26/99:40 a.m.SOU - YYZ

1 stop11h 10mBritish Airways

Deal found 14/8C$ 1,527

One-way flights to Portsmouth
Search for one-way flight options to Portsmouth. Find affordable one-way fares based on user searches. Data last updated 15 August 2025.

Sun 5/1010:10 p.m.YYZ - SOU

1 stop29h 05mMultiple Airlines

Deal found 14/8C$ 316

Sat 27/910:15 p.m.YYZ - SOU

2 stops32h 05mMultiple Airlines

Deal found 13/8C$ 494

Sat 27/91:25 p.m.YTZ - SOU

2 stops14h 10mMultiple Airlines

Deal found 13/8C$ 607

Tue 19/810:10 p.m.YYZ - SOU

1 stop29h 35mDelta

Deal found 13/8C$ 1,272

Thu 29/15:25 p.m.YYZ - SOU

1 stop10h 20mBritish Airways

Deal found 13/8C$ 1,391

Fri 19/93:11 p.m.YYZ - SOU

2 stops19h 34mBritish Airways

Deal found 14/8C$ 1,485

Fly from

Route

Depart

Return

Price

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 22/11

5:50 p.m.-8:50 a.m.

1 stop10h 00m

Southampton Eastleigh

Thu 27/11

8:50 a.m.-3:40 p.m.

1 stop11h 50m

C$ 813

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Wed 5/11

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

2 stops15h 10m

Southampton Eastleigh

Wed 19/11

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

1 stop12h 00m

C$ 852

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 23/11

9:15 p.m.-8:10 a.m.

1 stop29h 55m

Southampton Eastleigh

Thu 27/11

6:05 p.m.-11:29 a.m.

2 stops46h 24m

C$ 852

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 12/10

4:35 p.m.-5:00 p.m.

1 stop19h 25m

Southampton Eastleigh

Tue 28/10

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

2 stops18h 15m

C$ 853

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 12/10

4:35 p.m.-5:00 p.m.

1 stop19h 25m

Southampton Eastleigh

Thu 30/10

6:05 p.m.-11:05 p.m.

2 stops33h 00m

C$ 853

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 12/10

4:35 p.m.-8:45 a.m.

1 stop11h 10m

Southampton Eastleigh

Sun 26/10

6:05 p.m.-9:29 a.m.

2 stops43h 24m

C$ 853

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 12/10

4:35 p.m.-8:45 a.m.

1 stop11h 10m

Southampton Eastleigh

Mon 27/10

8:40 a.m.-4:09 p.m.

2 stops35h 29m

C$ 853

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sun 5/10

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

1 stop29h 05m

C$ 316

TorontoSouthampton

YYZ - SOU

YYZSOU

Toronto Pearson Intl

Sat 27/9

10:15 p.m.-11:20 a.m.

2 stops32h 05m

C$ 494

TorontoSouthampton

YTZ - SOU

YTZSOU

Toronto Island

Sat 27/9

1:25 p.m.-8:35 a.m.

2 stops14h 10m

C$ 607

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/8

Showing 1-10 of 13 results

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 30 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?

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 (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 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.

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

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

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

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

7.8

Good

1,381 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,381 reviews

KLM

7.8

Good

1,381 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,214 reviews

KLM

7.8

Good

1,381 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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$ 175, however they can be found for as little as C$ 130.
Where does the fastest flight to Portsmouth depart from?
For those looking to save time traveling to Portsmouth, Halifax Intl offers the quickest one-way flight (9 hours 25 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 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

Fly with Cheapflights

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.

C$ 316+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

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 15 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Portsmouth

Cheapest flights to PortsmouthExplore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 15 August 2025.

Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 15 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights to Portsmouth that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight to Portsmouth

How long is the flight to Portsmouth?

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.

Weekly flight availability to Portsmouth

What are the most popular airlines that fly to Portsmouth?

What are the cheapest airlines that fly to Portsmouth?

Rainfall in Portsmouth by month

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

Temperature in Portsmouth by month

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

Reviews of airlines servicing Portsmouth

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.

FAQs about flying to Portsmouth

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

What is the best airline to fly to Portsmouth?

How much is a round-trip flight to Portsmouth?

Where does the fastest flight to Portsmouth depart from?

Does London Heathrow have rental cars?

Are there hotels close to London Heathrow?

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.

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?

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

Can Cheapflights find flights to Portsmouth with no change fees?

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

100% Free

Book with Flexibility

Travel Smart

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 15 August 2025.