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Portsmouth

$1,174+ Cheap flights from Rochester (ROC) to Portsmouth, England

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
ROC — LHR
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap flight deals from Rochester to Portsmouth

Keep the following information in mind while searching for Rochester to Portsmouth flight deals. Data was last updated November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$989
(Virgin Atlantic)

Popular in

June

Cheapest in

February

Average price

$735
Provider with most accurate pricing for Greater Rochester Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Greater Rochester Intl-London (LON) flights.
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From Greater Rochester Intl to Portsmouth
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Highest demand for flights based on searches. 23% potential increase in price ($237 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 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 from Rochester to Portsmouth

Cheapest flights from Rochester to Portsmouth
Explore the most affordable flight options available from Rochester to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Ovago deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:25 amROC - SOU
2 stops23h 10mAer Lingus
Tue 12/238:10 pmSOU - ROC
2 stops32h 49mAer Lingus
Deal found 11/1$1,174
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:24 pmROC - SOU
2 stops16h 31mMultiple Airlines
Tue 12/238:55 amSOU - ROC
3 stops19h 58mMultiple Airlines
Deal found 11/1$3,716

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rochester to Portsmouth 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 2,558,603 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Rochester to Portsmouth that are best for you.

Fly from

Rochester

Fly to

Portsmouth

Route

Depart

Return

Price

RochesterSouthampton

ROC - SOU

ROCSOU

Greater Rochester Intl

Tue 12/16

11:25 am-3:35 pm

2 stops23h 10m

Southampton Eastleigh

Tue 12/23

8:10 pm-11:59 pm

2 stops32h 49m

$1,174

RochesterSouthampton

ROC - SOU

ROCSOU

Greater Rochester Intl

Tue 12/16

2:24 pm-11:55 am

2 stops16h 31m

Southampton Eastleigh

Tue 12/23

8:55 am-11:53 pm

3 stops19h 58m

$3,716

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Rochester to Portsmouth

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

What is the cheapest month to book a flight from Rochester to Portsmouth?

Currently, December is the cheapest month in which you can book a flight from Rochester to Portsmouth (average of $328). Flying from Rochester to Portsmouth in June is currently the most expensive (average of $756). 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.

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

Find hourly flight availability from Rochester to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

A simple way to save on the total cost of your ticket is to fly from Rochester to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Rochester to Portsmouth?

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

Travelers seeking maximum savings on their Rochester to Portsmouth flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Rochester to Portsmouth. 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 Rochester to Portsmouth?

    Located just 3.8 mi from the city center, Greater Rochester Intl is the airport most travelers will use when flying to Portsmouth from Rochester. Booking flights from Greater Rochester Intl (ROC) to Portsmouth should be relatively easy as there are 0 daily outbound flights to Portsmouth from 6 different airlines.

  • How long is the flight from Rochester to Portsmouth?

    A quick flight from Rochester to Portsmouth can take about 23h 10m. Aer Lingus provides one of the quickest options available for as low as $1,174. The distance between Rochester and Portsmouth is about 3469 mi.

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

    Yes. In addition to deals on Rochester to Portsmouth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rochester to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from Rochester to Portsmouth 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 Rochester to Portsmouth?

    Currently, December is the cheapest month in which you can book a flight from Rochester to Portsmouth (average of $328). Flying from Rochester to Portsmouth in June is currently the most expensive (average of $756). 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.

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Top 6 airlines flying from Rochester to Portsmouth

Discover the top 6 airlines that operate flights from Rochester to Portsmouth. 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 2,558,603 searches. Data last updated November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$546Average$743FlexibilityNo cancel feeOn-time62%
DeltaCheapest$582Average$796FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$642Average$818FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$646Average$1,006FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$650Average$830FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$748Average$979FlexibilityNo cancel feeOn-time69%

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