$358+ Cheap flights from Los Angeles (LAX) to Portsmouth, England
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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
juil. 27 — août 31
Round-trip
1 adult, Economy
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Find cheap flights from Los Angeles to Portsmouth with Cheapflights
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Cheapest flights from Los Angeles to PortsmouthExplore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 27, 2026.
Explore the most affordable flight options available from Los Angeles to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/68:10 pm
LAX
- SOU
2 stops27h 10m
Multiple Airlines
sam. 8/229:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$861
This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/164:45 pm
LAX
- SOU
1 stop16h 50m
Virgin Atlantic
dim. 8/29:15 am
SOU
- LAX
2 stops22h 00m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$882
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/228:10 pm
LAX
- SOU
2 stops28h 35m
Multiple Airlines
dim. 10/49:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$885
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/198:10 pm
LAX
- SOU
2 stops32h 15m
Multiple Airlines
mar. 10/69:15 am
SOU
- LAX
1 stop17h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$891
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/218:10 pm
LAX
- SOU
2 stops30h 05m
Multiple Airlines
mer. 9/309:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$893
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/185:50 pm
LAX
- SOU
2 stops30h 55m
Multiple Airlines
mer. 8/269:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$908
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/299:15 pm
LAX
- SOU
2 stops27h 30m
Multiple Airlines
sam. 11/79:20 am
SOU
- LAX
1 stop17h 10m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$910
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/228:10 pm
LAX
- SOU
1 stop15h 20m
Aer Lingus
dim. 10/49:20 am
SOU
- LAX
1 stop17h 05m
Aer Lingus
Deal found 6/25![Aer Lingus logo]()
$934
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/188:10 pm
LAX
- SOU
2 stops32h 40m
Multiple Airlines
mer. 10/289:20 am
SOU
- LAX
1 stop17h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$935
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/77:45 pm
LAX
- SOU
1 stop14h 25m
Multiple Airlines
sam. 8/229:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$937
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/309:15 pm
LAX
- SOU
1 stop28h 25m
Aer Lingus
sam. 11/79:20 am
SOU
- LAX
1 stop17h 10m
Aer Lingus
Deal found 6/24![Aer Lingus logo]()
$943
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 11/16:15 pm
LAX
- SOU
2 stops42h 30m
Multiple Airlines
mer. 11/119:20 am
SOU
- LAX
1 stop17h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$957
Best flights from Los Angeles to PortsmouthDiscover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated juin 27, 2026.
Discover carefully curated flight deals from Los Angeles to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated juin 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/228:10 pm
LAX
- SOU
2 stops28h 35m
Multiple Airlines
dim. 10/49:20 am
SOU
- LAX
1 stop17h 05m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$885
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/141:50 pm
LAX
- SOU
1 stop19h 00m
Delta
mar. 9/225:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 6/25![Delta logo]()
$1,061
This KLM deal was found by Cheapflights users on 6/23. 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.
jeu. 8/67:00 am
LAX
- SOU
2 stops17h 45m
KLM
sam. 8/229:15 am
SOU
- LAX
2 stops18h 19m
KLM
Deal found 6/23![KLM logo]()
$1,177
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/185:35 am
LAX
- SOU
2 stops28h 00m
Delta
mer. 8/266:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/27![Delta logo]()
$1,066
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/264:45 pm
LAX
- SOU
1 stop32h 00m
Delta
mar. 8/46:05 pm
SOU
- LAX
2 stops31h 28m
Delta
Deal found 6/22![Delta logo]()
$1,168
This Delta deal was found by Cheapflights users on 6/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/77:35 am
LAX
- SOU
2 stops17h 10m
Delta
sam. 8/229:15 am
SOU
- LAX
2 stops18h 19m
Delta
Deal found 6/24![Delta logo]()
$1,177
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/171:50 pm
LAX
- SOU
1 stop34h 55m
Delta
mer. 9/235:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 6/25![Delta logo]()
$1,197
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/264:45 pm
LAX
- SOU
1 stop32h 00m
Delta
lun. 8/36:05 pm
SOU
- LAX
1 stop28h 40m
Delta
Deal found 6/22![Delta logo]()
$1,244
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/264:45 pm
LAX
- SOU
1 stop32h 00m
Delta
dim. 8/25:30 pm
SOU
- LAX
1 stop26h 20m
Delta
Deal found 6/22![Delta logo]()
$1,314
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/191:50 pm
LAX
- SOU
1 stop34h 55m
Delta
jeu. 7/306:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/27![Delta logo]()
$1,351
Last-minute flights from Los Angeles to PortsmouthDiscover last-minute flight deals from Los Angeles to Portsmouth. Data last updated juin 27, 2026 and is based on user searches.
Discover last-minute flight deals from Los Angeles to Portsmouth. Data last updated juin 27, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/44:45 pm
LAX
- SOU
1 stop16h 15m
Delta
jeu. 7/169:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/23![Delta logo]()
$1,494
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 7/44:45 pm
LAX
- SOU
1 stop16h 15m
Delta
dim. 7/129:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/23![Delta logo]()
$1,564
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/54:45 pm
LAX
- SOU
1 stop32h 00m
Delta
mer. 7/159:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/23![Delta logo]()
$1,441
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/512:30 am
LAX
- SOU
2 stops24h 15m
Delta
lun. 7/136:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/23![Delta logo]()
$1,446
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 7/54:45 pm
LAX
- SOU
1 stop32h 00m
Delta
dim. 7/129:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/23![Delta logo]()
$1,511
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/64:45 pm
LAX
- SOU
1 stop16h 50m
Delta
sam. 7/119:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/23![Delta logo]()
$1,858
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/74:45 pm
LAX
- SOU
1 stop16h 50m
Delta
jeu. 8/206:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/27![Delta logo]()
$1,222
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/72:15 pm
LAX
- SOU
2 stops19h 20m
Delta
mer. 8/196:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/27![Delta logo]()
$1,227
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/74:45 pm
LAX
- SOU
1 stop16h 50m
Delta
sam. 8/229:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/27![Delta logo]()
$1,272
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/74:45 pm
LAX
- SOU
1 stop16h 50m
Delta
lun. 8/176:05 pm
SOU
- LAX
1 stop25h 45m
Delta
Deal found 6/27![Delta logo]()
$1,311
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/74:45 pm
LAX
- SOU
1 stop16h 50m
Delta
dim. 8/169:15 am
SOU
- LAX
1 stop13h 30m
Delta
Deal found 6/27![Delta logo]()
$1,364
This British Airways deal was found by Cheapflights users on 6/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/75:05 pm
LAX
- SOU
2 stops18h 20m
British Airways
lun. 8/249:20 am
SOU
- LAX
1 stop17h 05m
British Airways
Deal found 6/27![British Airways logo]()
$5,863
One-way flights from Los Angeles to PortsmouthSearch for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated juin 27, 2026.
Search for one-way flight options from Los Angeles to Portsmouth. Find affordable one-way fares based on user searches. Data last updated juin 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/282:39 pm
LAX
- SOU
3 stops45h 51m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/296:30 am
LAX
- SOU
3 stops30h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/2312:10 pm
LAX
- SOU
3 stops48h 20m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$375
This KAYAK deal was found by Cheapflights users on 6/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/297:30 am
LAX
- SOU
2 stops16h 35m
Aer Lingus
Deal found 6/24![Aer Lingus logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/163:04 pm
LAX
- SOU
3 stops44h 26m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/294:45 pm
LAX
- SOU
3 stops31h 50m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/188:10 pm
LAX
- SOU
2 stops32h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$407
This KLM deal was found by Cheapflights users on 6/24. 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.
mar. 9/294:45 pm
LAX
- SOU
1 stop16h 05m
KLM
Deal found 6/24![KLM logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/269:15 pm
LAX
- SOU
2 stops28h 30m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 6/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/309:30 am
LAX
- SOU
2 stops23h 20m
Delta
Deal found 6/24![Delta logo]()
$416
This Virgin Atlantic deal was found by Cheapflights users on 6/24. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/161:50 pm
LAX
- SOU
1 stop19h 45m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/289:15 pm
LAX
- SOU
1 stop28h 25m
Aer Lingus
Deal found 6/26![Aer Lingus logo]()
$427
Find flight deals from Los Angeles to Portsmouth
Keep the following information in mind while searching for Los Angeles to Portsmouth flight deals. Data was last updated juin 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $861 (Kiwi.com) |
One-way from | $358 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,103 |
Cheapflights Fare Finder
Customize your flight search to find flights from Los Angeles 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 juin 27, 2026.
Use the filters below to find and compare flights from Los Angeles to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
mar. 9/22
8:10 pm-8:45 am
2 stops28h 35m
Southampton Eastleigh
dim. 10/4
9:20 am-6:25 pm
1 stop17h 05m
$885
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
lun. 9/14
1:50 pm-4:50 pm
1 stop19h 00m
Southampton Eastleigh
mar. 9/22
5:20 pm-11:50 am
1 stop26h 30m
$1,061
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
mar. 8/18
5:35 am-5:35 pm
2 stops28h 00m
Southampton Eastleigh
mer. 8/26
6:05 pm-11:50 am
1 stop25h 45m
$1,066
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
dim. 7/26
4:45 pm-8:45 am
1 stop32h 00m
Southampton Eastleigh
mar. 8/4
6:05 pm-5:33 pm
2 stops31h 28m
$1,168
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
jeu. 8/6
7:00 am-8:45 am
2 stops17h 45m
Southampton Eastleigh
sam. 8/22
9:15 am-7:34 pm
2 stops18h 19m
$1,177
Quickest round-trip
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
ven. 8/7
7:35 am-8:45 am
2 stops17h 10m
Southampton Eastleigh
sam. 8/22
9:15 am-7:34 pm
2 stops18h 19m
$1,177
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
jeu. 9/17
1:50 pm-8:45 am
1 stop34h 55m
Southampton Eastleigh
mer. 9/23
5:20 pm-11:50 am
1 stop26h 30m
$1,197
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
dim. 7/26
4:45 pm-8:45 am
1 stop32h 00m
Southampton Eastleigh
lun. 8/3
6:05 pm-2:45 pm
1 stop28h 40m
$1,244
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
dim. 7/26
4:45 pm-8:45 am
1 stop32h 00m
Southampton Eastleigh
dim. 8/2
5:30 pm-11:50 am
1 stop26h 20m
$1,314
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
dim. 7/19
1:50 pm-8:45 am
1 stop34h 55m
Southampton Eastleigh
jeu. 7/30
6:05 pm-11:50 am
1 stop25h 45m
$1,351
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Los Angeles to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Los Angeles with our price prediction graph.
LAX-SOU
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 Los Angeles to Portsmouth
LAX-P0R
LAX-SOU
What is the cheapest time of day to fly from LAX to P0R?
Find hourly flight availability from Los Angeles 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 juin 27, 2026.
It’s typically best to fly out from Los Angeles to Portsmouth at noon. Doing so could potentially save you 39% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Los Angeles to Portsmouth
Explore weekly flight availability from Los Angeles to Portsmouth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated juin 27, 2026.
The most flights from LAX to P0R are scheduled on a Monday (54 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (33 on average).
What is the cheapest day to fly from Los Angeles to Portsmouth?
Use this chart to determine the cheapest time to fly round-trip from Los Angeles to Portsmouth. Price data was last updated on June 20, 2026.
Travelers seeking maximum savings on their Los Angeles to Portsmouth flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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 juin 27, 2026.
See what other customers who have flown with Delta and Aer Lingus from Los Angeles to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Los Angeles to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Los Angeles to Portsmouth
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Complete your trip
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Search flights from Los Angeles to Portsmouth by cabin class
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Los Angeles and Portsmouth flights
Browse other Los Angeles and Portsmouth flight options. Last updated on juin 27, 2026.
Other flights from Los Angeles
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Los Angeles to Portsmouth flights
Consider these flights traveling from Los Angeles to Portsmouth.
Top 10 airlines flying from Los Angeles to Portsmouth
Discover the top 10 airlines that operate flights from Los Angeles 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 juin 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$1,022 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$291 | Average$902 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$333 | Average$683 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$411 | Average$996 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$428 | Average$559 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$474 | Average$871 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$485 | Average$805 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$490 | Average$748 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$520 | Average$816 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$522 | Average$847 | FlexibilityNo cancel fee | On-time77% |