$219+ Cheap flights from the United States 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Find cheap flights from USA to Portsmouth with Cheapflights
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Cheapest flights from USA to PortsmouthExplore the most affordable flight options available from USA to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
Explore the most affordable flight options available from USA to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
This Kissandfly.com deal was found by Cheapflights users on 6/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:55 pm
JFK
- SOU
1 stop10h 45m
Aer Lingus
Sun 8/309:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/28![Aer Lingus logo]()
$735
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:55 pm
JFK
- SOU
1 stop11h 55m
Aer Lingus
Sun 8/309:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/27![Aer Lingus logo]()
$760
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.
Mon 8/175:35 pm
EWR
- SOU
1 stop10h 05m
Multiple Airlines
Thu 8/278:00 pm
SOU
- EWR
2 stops30h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$763
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 8/35:25 pm
BOS
- SOU
1 stop10h 15m
Aer Lingus
Wed 8/199:20 am
SOU
- BOS
1 stop10h 35m
Aer Lingus
Deal found 6/30![Aer Lingus logo]()
$775
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Mon 8/178:30 pm
JFK
- SOU
2 stops18h 00m
Multiple Airlines
Wed 9/29:20 am
SOU
- JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$787
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Tue 9/299:35 pm
MIA
- SOU
1 stop12h 25m
Multiple Airlines
Sat 10/107:25 pm
SOU
- MIA
2 stops31h 55m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$796
This Trip.com deal was found by Cheapflights users on 6/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:35 pm
EWR
- SOU
1 stop18h 15m
Aer Lingus
Wed 9/99:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$798
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Mon 8/175:35 pm
EWR
- SOU
1 stop10h 05m
Multiple Airlines
Wed 9/28:00 pm
SOU
- EWR
2 stops31h 00m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$800
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 8/1711:55 pm
JFK
- SOU
1 stop14h 35m
Aer Lingus
Wed 9/29:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$806
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Mon 8/33:45 pm
EWR
- SOU
2 stops22h 45m
Multiple Airlines
Thu 8/208:00 pm
SOU
- EWR
2 stops24h 52m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$813
This Trip.com deal was found by Cheapflights users on 6/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:55 pm
JFK
- SOU
1 stop14h 35m
Aer Lingus
Wed 9/99:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$818
This Mytrip deal was found by Cheapflights users on 6/28. 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 8/1611:55 pm
JFK
- SOU
2 stops27h 50m
Multiple Airlines
Sun 8/305:30 pm
SOU
- JFK
2 stops33h 55m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$825
Best flights from USA to PortsmouthDiscover carefully curated flight deals from USA to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
Discover carefully curated flight deals from USA to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:18 pm
MIA
- SOU
2 stops15h 17m
Delta
Wed 10/145:20 pm
SOU
- MIA
1 stop26h 25m
Delta
Deal found 7/1![Delta logo]()
$999
This KLM deal was found by Cheapflights users on 6/28. 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.
Wed 9/161:45 pm
SFO
- SOU
1 stop34h 50m
KLM
Fri 10/29:05 am
SOU
- SFO
2 stops18h 58m
KLM
Deal found 6/28![KLM logo]()
$1,027
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:35 pm
EWR
- SOU
1 stop20h 55m
Aer Lingus
Sun 9/139:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/27![Aer Lingus logo]()
$1,096
This Virgin Atlantic deal was found by Cheapflights users on 6/28. 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.
Sun 8/910:50 am
HOU
- SOU
2 stops15h 55m
Virgin Atlantic
Tue 8/189:15 am
SOU
- HOU
2 stops18h 50m
Virgin Atlantic
Deal found 6/28![Virgin Atlantic logo]()
$1,113
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Wed 9/2312:25 pm
DFW
- SOU
3 stops25h 05m
Multiple Airlines
Sun 10/49:20 am
SOU
- DFW
2 stops16h 27m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,352
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am
MIA
- SOU
2 stops20h 45m
Delta
Mon 10/125:20 pm
SOU
- MIA
1 stop26h 25m
Delta
Deal found 6/26![Delta logo]()
$1,000
This KLM deal was found by Cheapflights users on 6/29. 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.
Tue 10/69:42 am
IAH
- SOU
2 stops17h 03m
KLM
Tue 10/209:05 am
SOU
- IAH
2 stops20h 53m
KLM
Deal found 6/29![KLM logo]()
$1,043
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:35 pm
EWR
- SOU
1 stop10h 05m
Aer Lingus
Sun 9/69:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/26![Aer Lingus logo]()
$1,104
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
MIA
- SOU
2 stops19h 45m
Delta
Thu 10/159:05 am
SOU
- MIA
2 stops18h 51m
Delta
Deal found 7/1![Delta logo]()
$1,009
This KLM deal was found by Cheapflights users on 6/29. 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 8/2310:39 am
IAH
- SOU
2 stops16h 06m
KLM
Wed 9/99:15 am
SOU
- IAH
1 stop34h 00m
KLM
Deal found 6/29![KLM logo]()
$1,094
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:49 am
MIA
- SOU
2 stops15h 46m
Delta
Thu 10/159:05 am
SOU
- MIA
2 stops18h 40m
Delta
Deal found 6/26![Delta logo]()
$1,010
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:50 pm
EWR
- SOU
2 stops20h 40m
Aer Lingus
Sat 9/129:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/27![Aer Lingus logo]()
$1,129
This KLM deal was found by Cheapflights users on 7/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:40 pm
IAD
- SOU
1 stop18h 55m
KLM
Tue 9/85:20 pm
SOU
- IAD
1 stop27h 15m
KLM
Deal found 7/1![KLM logo]()
$1,112
This Delta deal was found by Cheapflights users on 6/29. 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.
Wed 9/162:00 pm
SFO
- SOU
2 stops18h 50m
Delta
Fri 10/29:05 am
SOU
- SFO
2 stops22h 48m
Delta
Deal found 6/29![Delta logo]()
$1,031
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:35 pm
EWR
- SOU
1 stop10h 05m
Aer Lingus
Sun 8/308:00 pm
SOU
- EWR
2 stops22h 55m
Aer Lingus
Deal found 6/26![Aer Lingus logo]()
$1,138
This Travelocity deal was found by Cheapflights users on 6/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:46 pm
HOU
- SOU
2 stops24h 44m
Multiple Airlines
Wed 8/58:00 pm
SOU
- HOU
2 stops29h 44m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$1,433
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:10 pm
IAD
- SOU
1 stop18h 25m
KLM
Mon 9/75:20 pm
SOU
- IAD
1 stop27h 15m
KLM
Deal found 6/27![KLM logo]()
$1,113
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.
Tue 10/611:20 am
IAH
- SOU
2 stops15h 25m
Delta
Tue 10/205:20 pm
SOU
- IAH
1 stop25h 55m
Delta
Deal found 6/27![Delta logo]()
$1,034
This Cheapflightsfares deal was found by Cheapflights users on 6/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:21 pm
DFW
- SOU
2 stops24h 09m
Aer Lingus
Sun 10/49:20 am
SOU
- DFW
1 stop13h 00m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$1,219
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:35 pm
JFK
- SOU
1 stop29h 10m
KLM
Wed 8/126:05 pm
SOU
- JFK
1 stop28h 14m
KLM
Deal found 6/26![KLM logo]()
$1,116
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:47 am
MIA
- SOU
2 stops15h 58m
Delta
Wed 10/145:20 pm
SOU
- MIA
1 stop26h 25m
Delta
Deal found 7/1![Delta logo]()
$1,049
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:59 pm
MCO
- SOU
1 stop31h 41m
Aer Lingus
Sun 8/25:20 pm
SOU
- MCO
1 stop29h 55m
Aer Lingus
Deal found 6/28![Aer Lingus logo]()
$1,233
This KLM deal was found by Cheapflights users on 6/30. 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.
Fri 8/213:25 pm
IAH
- SOU
1 stop19h 35m
KLM
Thu 9/35:20 pm
SOU
- IAH
1 stop26h 00m
KLM
Deal found 6/30![KLM logo]()
$1,139
This Delta deal was found by Cheapflights users on 7/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:47 am
MIA
- SOU
2 stops15h 58m
Delta
Sat 10/105:20 pm
SOU
- MIA
2 stops30h 25m
Delta
Deal found 7/1![Delta logo]()
$1,059
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:20 pm
MIA
- SOU
2 stops15h 25m
Delta
Thu 10/159:05 am
SOU
- MIA
2 stops19h 04m
Delta
Deal found 6/26![Delta logo]()
$1,060
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 pm
DFW
- SOU
1 stop18h 30m
Aer Lingus
Sat 10/108:00 pm
SOU
- DFW
1 stop26h 20m
Aer Lingus
Deal found 6/26![Aer Lingus logo]()
$1,315
This KLM deal was found by Cheapflights users on 6/29. 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.
Fri 10/26:29 pm
DFW
- SOU
2 stops16h 21m
KLM
Sat 10/109:20 am
SOU
- DFW
2 stops17h 46m
KLM
Deal found 6/29![KLM logo]()
$1,205
This Delta deal was found by Cheapflights users on 6/29. 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.
Tue 8/1111:24 am
MIA
- SOU
2 stops16h 21m
Delta
Wed 8/196:05 pm
SOU
- MIA
1 stop25h 40m
Delta
Deal found 6/29![Delta logo]()
$1,060
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:45 pm
SFO
- SOU
1 stop35h 00m
KLM
Thu 8/206:05 pm
SOU
- SFO
1 stop25h 40m
KLM
Deal found 6/27![KLM logo]()
$1,219
This Delta deal was found by Cheapflights users on 6/28. 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.
Wed 8/122:08 pm
MIA
- SOU
2 stops13h 37m
Delta
Wed 8/196:05 pm
SOU
- MIA
2 stops27h 52m
Delta
Deal found 6/28![Delta logo]()
$1,069
Last-minute flights from USA to PortsmouthDiscover last-minute flight deals from USA to Portsmouth. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from USA to Portsmouth. Data last updated July 1, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 8/35:25 pm
BOS
- SOU
1 stop10h 15m
Aer Lingus
Wed 8/199:20 am
SOU
- BOS
1 stop10h 35m
Aer Lingus
Deal found 6/30![Aer Lingus logo]()
$775
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Mon 8/33:45 pm
EWR
- SOU
2 stops22h 45m
Multiple Airlines
Thu 8/208:00 pm
SOU
- EWR
2 stops24h 52m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$813
This Mytrip deal was found by Cheapflights users on 6/29. 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.
Mon 8/35:35 pm
EWR
- SOU
1 stop10h 05m
Aer Lingus
Thu 8/209:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$841
This Kissandfly.com deal was found by Cheapflights users on 6/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:55 pm
JFK
- SOU
1 stop10h 45m
Aer Lingus
Sun 8/309:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/28![Aer Lingus logo]()
$735
This Mytrip deal was found by Cheapflights users on 6/28. 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 8/1611:55 pm
JFK
- SOU
2 stops27h 50m
Multiple Airlines
Sun 8/305:30 pm
SOU
- JFK
2 stops33h 55m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$825
This Trip.com deal was found by Cheapflights users on 6/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:35 pm
EWR
- SOU
1 stop20h 55m
Aer Lingus
Sun 8/309:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/28![Aer Lingus logo]()
$850
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:55 pm
JFK
- SOU
1 stop11h 55m
Aer Lingus
Sun 8/309:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/27![Aer Lingus logo]()
$760
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.
Mon 8/175:35 pm
EWR
- SOU
1 stop10h 05m
Multiple Airlines
Thu 8/278:00 pm
SOU
- EWR
2 stops30h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$763
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Mon 8/178:30 pm
JFK
- SOU
2 stops18h 00m
Multiple Airlines
Wed 9/29:20 am
SOU
- JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$787
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Mon 8/175:35 pm
EWR
- SOU
1 stop10h 05m
Multiple Airlines
Wed 9/28:00 pm
SOU
- EWR
2 stops31h 00m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$800
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 8/1711:55 pm
JFK
- SOU
1 stop14h 35m
Aer Lingus
Wed 9/29:20 am
SOU
- JFK
1 stop18h 05m
Aer Lingus
Deal found 6/29![Aer Lingus logo]()
$806
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Mon 8/175:35 pm
EWR
- SOU
1 stop10h 05m
Aer Lingus
Wed 9/29:20 am
SOU
- EWR
1 stop11h 45m
Aer Lingus
Deal found 6/28![Aer Lingus logo]()
$848
One-way flights from USA to PortsmouthSearch for one-way flight options from USA to Portsmouth. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
Search for one-way flight options from USA to Portsmouth. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This oojo deal was found by Cheapflights users on 6/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:30 am
MCO
- SOU
2 stops16h 10m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$219
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:30 am
MCO
- SOU
2 stops16h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 8/108:30 pm
MCO
- SOU
2 stops30h 35m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:25 pm
EWR
- SOU
3 stops29h 55m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$294
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:10 pm
JFK
- SOU
2 stops27h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 8/1011:10 am
IAD
- SOU
3 stops42h 05m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Mon 8/36:20 pm
JFK
- SOU
2 stops32h 45m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$308
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Mon 8/38:25 pm
EWR
- SOU
2 stops18h 05m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Sat 8/18:25 pm
EWR
- SOU
2 stops31h 15m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Fri 9/188:25 pm
EWR
- SOU
3 stops30h 30m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$328
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.
Tue 8/188:30 pm
MCO
- SOU
2 stops31h 15m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Fri 8/1411:10 am
IAD
- SOU
3 stops41h 15m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$331
Find flight deals from USA to Portsmouth
Keep the following information in mind while searching for USA to Portsmouth flight deals. Data was last updated July 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $735 (Kissandfly.com) |
One-way from | $219 (oojo) |
Popular in | June |
Cheapest in | September |
Average price | $707 |
Cheapflights Fare Finder
Customize your flight search to find flights from USA 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 July 1, 2026.
Use the filters below to find and compare flights from the United States to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Wed 10/7
12:18 pm-8:35 am
2 stops15h 17m
Southampton Eastleigh
Wed 10/14
5:20 pm-2:45 pm
1 stop26h 25m
$999
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Tue 10/6
7:00 am-8:45 am
2 stops20h 45m
Southampton Eastleigh
Mon 10/12
5:20 pm-2:45 pm
1 stop26h 25m
$1,000
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Tue 10/6
8:00 am-8:45 am
2 stops19h 45m
Southampton Eastleigh
Thu 10/15
9:05 am-10:56 pm
2 stops18h 51m
$1,009
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Mon 10/5
11:49 am-8:35 am
2 stops15h 46m
Southampton Eastleigh
Thu 10/15
9:05 am-10:45 pm
2 stops18h 40m
$1,010
San FranciscoSouthampton
SFO - SOU
SFOSOU
San Francisco
Wed 9/16
1:45 pm-8:35 am
1 stop34h 50m
Southampton Eastleigh
Fri 10/2
9:05 am-8:03 pm
2 stops18h 58m
$1,027
San FranciscoSouthampton
SFO - SOU
SFOSOU
San Francisco
Wed 9/16
2:00 pm-4:50 pm
2 stops18h 50m
Southampton Eastleigh
Fri 10/2
9:05 am-11:53 pm
2 stops22h 48m
$1,031
HoustonSouthampton
IAH - SOU
IAHSOU
Houston George Bush Intcntl
Tue 10/6
11:20 am-8:45 am
2 stops15h 25m
Southampton Eastleigh
Tue 10/20
5:20 pm-1:15 pm
1 stop25h 55m
$1,034
HoustonSouthampton
IAH - SOU
IAHSOU
Houston George Bush Intcntl
Tue 10/6
9:42 am-8:45 am
2 stops17h 03m
Southampton Eastleigh
Tue 10/20
9:05 am-11:58 pm
2 stops20h 53m
$1,043
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Fri 10/9
11:47 am-8:45 am
2 stops15h 58m
Southampton Eastleigh
Wed 10/14
5:20 pm-2:45 pm
1 stop26h 25m
$1,049
MiamiSouthampton
MIA - SOU
MIASOU
Miami
Tue 10/6
11:47 am-8:45 am
2 stops15h 58m
Southampton Eastleigh
Sat 10/10
5:20 pm-6:45 pm
2 stops30h 25m
$1,059
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from USA to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from USA with our price prediction graph.
JFK-SOU
EWR-SOU
BOS-SOU
MCO-SOU
IAH-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 the United States to Portsmouth
US0-P0R
JFK-SOU
EWR-SOU
BOS-SOU
MCO-SOU
What is the cheapest time of day to fly from US to P0R?
Find hourly flight availability from USA 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 July 1, 2026.
It’s typically best to fly out from USA to Portsmouth in the evening. Doing so could potentially save you 6% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from USA to Portsmouth
Explore weekly flight availability from USA 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 July 1, 2026.
The most flights from US0 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 USA to Portsmouth?
Use this chart to determine the cheapest time to fly round-trip from USA to Portsmouth. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their USA to Portsmouth flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon 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 July 1, 2026.
See what other customers who have flown with KLM,Delta, andAer Lingus from the United States 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.
Entertainment
7.2
Comfort
7.7
Boarding
7.8
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Comfort
7.7
Boarding
7.8
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Comfort
7.7
Boarding
7.8
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Comfort
7.7
Boarding
7.8
Overall
7.8
Crew
8.4
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from USA to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Alternative routes for USA to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portsmouth by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from USA to Portsmouth by cabin class
Find flights from USA to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
USA and Portsmouth flights
Browse other USA and Portsmouth flight options. Last updated on July 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
USA to Portsmouth flights
Consider these flights traveling from USA to Portsmouth.
Top 10 airlines flying from USA to Portsmouth
Discover the top 10 airlines that operate flights from USA 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 July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$45 | Average$719 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$263 | Average$674 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$291 | Average$809 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$291 | Average$1,052 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$545 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$294 | Average$752 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$301 | Average$601 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$361 | Average$899 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$400 | Average$798 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$432 | Average$857 | FlexibilityNo cancel fee | On-time67% |