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Cheap flights from Portsmouth to Niagara Falls

LHR — YYZ
1 Nov — 8 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Niagara Falls

Popular in

August

Cheapest in

February

Average price

£459
Highest demand for flights based on searches. 10% potential increase in price (£43 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Niagara Falls

What is the cheapest time of day to fly from P0R to NI4?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Niagara Falls as you normally would.

Related info for your journey

  • What are the most reliable airlines from Portsmouth to Niagara Falls?

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Niagara Falls consider choosing MEA (90%), Singapore Airlines (89%) or SriLankan Airlines (85%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Niagara Falls?

    On average you can expect to pay £1,450 for a flight from Portsmouth to Niagara Falls. The cheapest flight overall is £319 while the most popular route, (Southampton Eastleigh - Toronto Pearson Intl) is currently priced at £534.

  • Can I find deals for flights from Portsmouth to Niagara Falls that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Niagara Falls flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Niagara Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Niagara Falls.

  • Can I find deals for business class flights from Portsmouth to Niagara Falls?

    Yes. Cheapflights offers flight deals from Portsmouth to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Portsmouth to Niagara Falls

Heathrow to Pearson Intl flights
Gatwick to Pearson Intl flights
Heathrow to Toronto Island flights
London City to Pearson Intl flights
Stansted to Pearson Intl flights
Luton to Pearson Intl flights
Heathrow to Pierre Elliott Trudeau Intl flights
Gatwick to Toronto Island flights
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights
Manchester to Pearson Intl flights
Edinburgh to Pearson Intl flights
Heathrow to Ottawa flights
Southend to Pearson Intl flights
Manchester to Toronto Island flights
Gatwick to Ottawa flights
London City to Ottawa flights
Edinburgh to Toronto Island flights
Birmingham to Pearson Intl flights
Edinburgh to Pierre Elliott Trudeau Intl flights
Newcastle upon Tyne to Pearson Intl flights
Manchester to Pierre Elliott Trudeau Intl flights
Southampton to Pearson Intl flights
Birmingham to Toronto Island flights
Stansted to Ottawa flights
Leeds to Pearson Intl flights
Newcastle upon Tyne to Pierre Elliott Trudeau Intl flights
Heathrow to London flights
Gatwick to London flights
Heathrow to Thunder Bay flights
Stansted to London flights
Manchester to Ottawa flights
London City to London flights
Bristol to Pearson Intl flights
Liverpool to Pearson Intl flights
Birmingham to Pierre Elliott Trudeau Intl flights
Newcastle upon Tyne to Toronto Island flights
Gatwick to Thunder Bay flights
Heathrow to Windsor flights
Exeter to Pearson Intl flights
Leeds to Pierre Elliott Trudeau Intl flights
London City to Thunder Bay flights

Top 10 airlines flying from Portsmouth to Niagara Falls

AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest£268Average£683FlexibilityNo cancel feeOn-time81%
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IcelandairCheapest£277Average£423FlexibilityNo cancel feeOn-time76%
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Air CanadaCheapest£324Average£534FlexibilityNo cancel feeOn-time67%
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TAP AIR PORTUGALCheapest£340Average£570FlexibilityNo cancel feeOn-timeN/A
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Virgin AtlanticCheapest£346Average£536FlexibilityNo cancel feeOn-time72%
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Air TransatCheapest£350Average£539FlexibilityNo cancel feeOn-time50%
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FinnairCheapest£364Average£831FlexibilityNo cancel feeOn-time76%
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LufthansaCheapest£365Average£578FlexibilityNo cancel feeOn-time76%
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WestJetCheapest£366Average£563FlexibilityNo cancel feeOn-time60%
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British AirwaysCheapest£367Average£541FlexibilityNo cancel feeOn-time70%
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How does Cheapflights help users find flights from Portsmouth to Niagara Falls?

Deals for Portsmouth to Niagara Falls flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Niagara Falls from Portsmouth.

Can Cheapflights find flights from Portsmouth to Niagara Falls with no change fees?

Need flexible booking options for your flight to Niagara Falls from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Portsmouth to Niagara Falls 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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