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Portsmouth

$1,328+ Cheap flights from San Antonio (SAT) 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from San Antonio to Portsmouth

Keep the following information in mind while searching for San Antonio to Portsmouth flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,328
(KLM)

Popular in

January

Cheapest in

February

Average price

$782
Provider with most accurate pricing for San Antonio-London (LON) flight deals.
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Provider most trusted by Cheapflights users for San Antonio-London (LON) flights.
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From San Antonio to Portsmouth
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Highest demand for flights based on searches. 12% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Antonio to Portsmouth

Cheapest flights from San Antonio to Portsmouth
Explore the most affordable flight options available from San Antonio to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This KLM deal was found by Cheapflights users on 4/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/16:10 pmSAT - SOU
2 stops16h 50mKLM
Sun 6/89:20 amSOU - SAT
2 stops20h 57mKLM
Deal found 4/17$1,328
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/110:34 amSAT - SOU
2 stops16h 36mMultiple Airlines
Sun 6/89:10 amSOU - SAT
3 stops29h 46mMultiple Airlines
Deal found 4/17$1,473

Cheapflights Fare Finder

Customize your flight search to find flights from San Antonio 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 April 17, 2025.
Use the filters below to find and compare flights from San Antonio to Portsmouth that are best for you.

Fly from

San Antonio

Fly to

Portsmouth

Route

Depart

Return

Price

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Sun 6/1

6:10 pm-5:00 pm

2 stops16h 50m

Southampton Eastleigh

Sun 6/8

9:20 am-12:17 am

2 stops20h 57m

$1,328

San AntonioSouthampton

SAT - SOU

SATSOU

San Antonio

Sun 6/1

10:34 am-9:10 am

2 stops16h 36m

Southampton Eastleigh

Sun 6/8

9:10 am-8:56 am

3 stops29h 46m

$1,473

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Best time to book a flight from San Antonio to Portsmouth

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

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

Currently, November is the cheapest month in which you can book a flight from San Antonio to Portsmouth (average of $661). Flying from San Antonio to Portsmouth in June is currently the most expensive (average of $1,110). 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 SAT to P0R?

Find hourly flight availability from San Antonio 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 April 17, 2025.

When flying from San Antonio to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from San Antonio to Portsmouth?

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

Travelers seeking maximum savings on their San Antonio to Portsmouth flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Portsmouth when rainfall is around 1.0 in.

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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

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 April 17, 2025.
KLM
7.8
Good
1,329 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,329 reviews
KLM
7.8
Good
1,329 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from San Antonio 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 San Antonio to Portsmouth?

    For a flight from San Antonio to Portsmouth, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city. San Antonio is the only San Antonio airport and it handles 0 outbound flights to Portsmouth per day. 6 airlines have flights to Portsmouth from San Antonio on a regular basis.

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

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

  • How can I find direct flights from San Antonio to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from San Antonio 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 San Antonio to Portsmouth?

    Currently, November is the cheapest month in which you can book a flight from San Antonio to Portsmouth (average of $661). Flying from San Antonio to Portsmouth in June is currently the most expensive (average of $1,110). 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 San Antonio to Portsmouth

Discover the top 6 airlines that operate flights from San Antonio 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$615Average$904FlexibilityNo cancel feeOn-time71%
IberiaCheapest$672Average$908FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$692Average$929FlexibilityNo cancel feeOn-time69%
DeltaCheapest$703Average$1,078FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$703Average$916FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$715Average$1,072FlexibilityNo cancel feeOn-time72%

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