$331+ Cheap flights from San Diego (SAN) to Portugal
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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LIS
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Portugal
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Cheapest flights from San Diego to PortugalExplore the most affordable flight options available from San Diego to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from San Diego to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:50 pm -
2 stops30h 00m
Tue 11/31:45 pm -
1 stop34h 00m
Deal found 9/3![Multiple Airlines logo]()
$715
This lol.travel deal was found by Cheapflights users on 9/3. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:15 pm -
1 stop22h 10m
Tue 11/31:45 pm -
1 stop34h 00m
Deal found 9/3![Lufthansa logo]()
$716
This Flysmarter deal was found by Cheapflights users on 9/1. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:20 am -
1 stop19h 05m
Tue 11/35:00 am -
1 stop15h 10m
Deal found 9/1![KLM logo]()
$730
This Delta deal was found by Cheapflights users on 9/2. 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.
Sun 11/157:32 am -
1 stop16h 43m
Thu 12/35:00 am -
1 stop15h 10m
Deal found 9/2![Delta logo]()
$738
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/1810:25 pm -
2 stops28h 05m
Tue 11/35:00 am -
2 stops23h 35m
Deal found 9/3![Delta logo]()
$739
This Delta deal was found by Cheapflights users on 9/2. 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 10/278:00 am -
2 stops19h 35m
Tue 11/35:00 am -
1 stop15h 10m
Deal found 9/2![Delta logo]()
$742
This Lufthansa deal was found by Cheapflights users on 9/2. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:21 am -
2 stops17h 29m
Thu 12/36:00 am -
2 stops19h 59m
Deal found 9/2![Lufthansa logo]()
$744
This Air Canada deal was found by Cheapflights users on 9/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1512:55 pm -
2 stops39h 55m
Thu 12/36:00 am -
2 stops19h 59m
Deal found 9/2![Air Canada logo]()
$747
This Delta deal was found by Cheapflights users on 9/2. 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.
Sun 11/157:32 am -
1 stop16h 43m
Fri 12/45:00 am -
2 stops25h 55m
Deal found 9/2![Delta logo]()
$748
This Booking.com deal was found by Cheapflights users on 9/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:01 pm -
2 stops35h 44m
Wed 12/22:10 pm -
2 stops37h 58m
Deal found 9/4![Multiple Airlines logo]()
$776
This Expedia deal was found by Cheapflights users on 9/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:01 pm -
2 stops31h 39m
Wed 12/22:10 pm -
2 stops37h 58m
Deal found 9/4![Multiple Airlines logo]()
$798
This Ovago deal was found by Cheapflights users on 9/3. 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 11/34:35 pm -
2 stops35h 05m
Wed 12/22:10 pm -
2 stops37h 58m
Deal found 9/3![Multiple Airlines logo]()
$831
Best flights from San Diego to PortugalDiscover carefully curated flight deals from San Diego to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from San Diego to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This Delta deal was found by Cheapflights users on 9/5. 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 10/278:00 am -
2 stops19h 35m
Tue 11/35:00 am -
1 stop15h 10m
Deal found 9/5![Delta logo]()
$742
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:00 am -
2 stops17h 30m
Fri 12/1112:35 pm -
2 stops17h 53m
Deal found 9/5![United Airlines logo]()
$765
This Ovago deal was found by Cheapflights users on 9/3. 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 11/34:35 pm -
2 stops35h 05m
Wed 12/22:10 pm -
2 stops37h 58m
Deal found 9/3![Multiple Airlines logo]()
$831
This KLM deal was found by Cheapflights users on 9/3. 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 11/32:05 pm -
1 stop15h 45m
Wed 12/210:20 am -
1 stop33h 50m
Deal found 9/3![KLM logo]()
$859
This Lufthansa deal was found by Cheapflights users on 9/5. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:15 pm -
1 stop36h 25m
Sun 10/112:30 pm -
1 stop32h 55m
Deal found 9/5![Lufthansa logo]()
$1,051
This Scandinavian Airlines deal was found by Cheapflights users on 9/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/310:00 am -
3 stops22h 05m
Wed 3/107:05 am -
3 stops23h 50m
Deal found 9/2![Scandinavian Airlines logo]()
$1,083
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 12/244:00 pm -
2 stops22h 00m
Thu 1/75:00 am -
1 stop15h 10m
Deal found 9/2![Delta logo]()
$812
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:25 pm -
1 stop27h 25m
Tue 9/2211:40 am -
1 stop19h 09m
Deal found 9/3![United Airlines logo]()
$875
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/5. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/811:48 am -
2 stops28h 57m
Wed 11/116:30 am -
2 stops35h 05m
Deal found 9/5![TAP AIR PORTUGAL logo]()
$1,824
This KLM deal was found by Cheapflights users on 9/4. 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 10/301:18 pm -
2 stops17h 32m
Wed 12/210:20 am -
1 stop33h 50m
Deal found 9/4![KLM logo]()
$914
This Delta deal was found by Cheapflights users on 9/5. 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 12/296:15 am -
2 stops21h 10m
Sat 1/95:00 am -
1 stop15h 10m
Deal found 9/5![Delta logo]()
$856
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:57 am -
3 stops22h 08m
Wed 11/47:05 am -
2 stops23h 38m
Deal found 9/5![Scandinavian Airlines logo]()
$1,113
This Delta deal was found by Cheapflights users on 9/5. 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.
Sun 10/49:46 am -
2 stops21h 09m
Sun 10/115:35 am -
2 stops20h 27m
Deal found 9/5![Delta logo]()
$981
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:35 pm -
2 stops37h 45m
Wed 12/96:05 am -
3 stops24h 37m
Deal found 9/4![United Airlines logo]()
$1,118
This KLM deal was found by Cheapflights users on 9/2. 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.
Thu 9/241:40 pm -
1 stop16h 55m
Fri 10/210:00 am -
1 stop21h 34m
Deal found 9/2![KLM logo]()
$1,218
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:41 pm -
3 stops29h 39m
Wed 10/75:05 am -
2 stops23h 03m
Deal found 9/2![United Airlines logo]()
$1,142
This Delta deal was found by Cheapflights users on 9/4. 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 9/187:30 am -
2 stops19h 45m
Thu 9/245:35 am -
2 stops22h 53m
Deal found 9/4![Delta logo]()
$1,137
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:35 pm -
1 stop21h 55m
Sat 11/286:00 am -
1 stop17h 45m
Deal found 9/1![United Airlines logo]()
$1,156
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/3. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/299:50 am -
2 stops30h 55m
Thu 12/36:30 am -
2 stops35h 53m
Deal found 9/3![TAP AIR PORTUGAL logo]()
$2,282
Last-minute flights from San Diego to PortugalDiscover last-minute flight deals from San Diego to Portugal. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Portugal. Data last updated September 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:25 pm -
1 stop27h 25m
Tue 9/2211:40 am -
2 stops18h 30m
Deal found 9/3![United Airlines logo]()
$875
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:50 pm -
2 stops30h 00m
Tue 11/31:45 pm -
1 stop34h 00m
Deal found 9/3![Multiple Airlines logo]()
$715
This lol.travel deal was found by Cheapflights users on 9/3. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:15 pm -
1 stop22h 10m
Tue 11/31:45 pm -
1 stop34h 00m
Deal found 9/3![Lufthansa logo]()
$716
This Flysmarter deal was found by Cheapflights users on 9/1. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:20 am -
1 stop19h 05m
Tue 11/35:00 am -
1 stop15h 10m
Deal found 9/1![KLM logo]()
$730
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/1810:05 pm -
1 stop28h 25m
Tue 11/35:00 am -
2 stops26h 46m
Deal found 9/3![Delta logo]()
$739
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:35 am -
1 stop19h 10m
Tue 10/2712:35 pm -
2 stops41h 05m
Deal found 9/5![United Airlines logo]()
$818
This Air Canada deal was found by Cheapflights users on 9/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am -
2 stops16h 00m
Wed 10/286:00 am -
2 stops37h 00m
Deal found 9/5![Multiple Airlines logo]()
$799
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:15 pm -
1 stop22h 10m
Wed 10/286:00 am -
2 stops19h 34m
Deal found 9/5![Lufthansa logo]()
$800
This Delta deal was found by Cheapflights users on 9/2. 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 10/278:00 am -
2 stops19h 35m
Tue 11/35:00 am -
1 stop15h 10m
Deal found 9/2![Delta logo]()
$742
This Booking.com deal was found by Cheapflights users on 9/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:01 pm -
2 stops35h 44m
Wed 12/22:10 pm -
2 stops37h 58m
Deal found 9/4![Multiple Airlines logo]()
$776
This KLM deal was found by Cheapflights users on 9/4. 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 10/281:18 pm -
2 stops17h 32m
Wed 12/210:20 am -
1 stop33h 50m
Deal found 9/4![KLM logo]()
$864
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:05 am -
2 stops17h 05m
Sat 11/75:00 am -
3 stops23h 37m
Deal found 9/2![United Airlines logo]()
$859
One-way flights from San Diego to PortugalSearch for one-way flight options from San Diego to Portugal. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from San Diego to Portugal. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/196:00 pm -
1 stop15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![British Airways logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 10/238:34 pm -
3 stops52h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$331
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:00 pm -
1 stop15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![British Airways logo]()
$338
This British Airways deal was found by Cheapflights users on 9/4. 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.
Mon 12/286:00 pm -
1 stop31h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![British Airways logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 10/218:34 pm -
2 stops41h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 10/223:30 pm -
2 stops23h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![WestJet logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/82:01 pm -
3 stops47h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$352
This Lufthansa deal was found by Cheapflights users on 9/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/275:35 pm -
1 stop22h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Lufthansa logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 10/238:34 pm -
3 stops52h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 9/1. 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 1/266:15 am -
2 stops20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Delta logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 10/26:54 pm -
3 stops43h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/56:54 pm -
3 stops42h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$362
Find flight deals from San Diego to Portugal
Keep the following information in mind while searching for San Diego to Portugal flight deals. Data was last updated September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $715 (Gotogate) |
One-way from | $331 (Expedia) |
Popular in | August |
Cheapest in | February |
Average price | $964 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Portugal 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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from San Diego to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Mon 12/28
6:00 pm-9:45 am
1 stop31h 45m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$342
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Sun 1/24
6:15 am-8:00 am
2 stops17h 45m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$348
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Wed 1/27
5:35 pm-11:55 pm
1 stop22h 20m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$354
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Tue 1/26
6:15 am-10:35 am
2 stops20h 20m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$356
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Mon 1/25
6:15 am-10:35 am
2 stops20h 20m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$356
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Wed 1/27
10:00 am-10:00 pm
2 stops28h 00m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$356
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Wed 10/21
7:50 am-9:20 pm
3 stops29h 30m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$364
San DiegoPorto
SAN San Diego - OPO Porto
SANOPO
San Diego
Sat 11/7
1:30 pm-7:45 am
3 stops34h 15m
Porto
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$370
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Mon 12/28
10:40 pm-8:10 am
2 stops25h 30m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$379
San DiegoLisbon
SAN San Diego - LIS Lisbon Humberto Delgado
SANLIS
San Diego
Mon 1/25
7:41 pm-8:10 am
3 stops28h 29m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$379
Showing 1-10 of 46 resultsSorted by cheapest first
Best time to book a flight from San Diego to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from San Diego with our price prediction graph.
SAN-OPO
SAN-FAO
SAN-LIS
SAN-PDL
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 Diego to Portugal
SAN-PT0
SAN-OPO
SAN-FAO
SAN-LIS
SAN-PDL
What is the cheapest month to book a flight from San Diego to Portugal?
Currently, February is the cheapest month in which you can book a flight from San Diego to Portugal (average of $589). Flying from San Diego to Portugal in August is currently the most expensive (average of $1,096). 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.
How far ahead should I book a flight from San Diego to Portugal?
The best time to book flights from San Diego to Portugal is 14 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Portugal
Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated September 6, 2026.
Get a feel of what it's like to fly with KLM,Delta, andUnited Airlines from San Diego to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Comfort
7.7
Crew
8.4
Food
7.3
Overall
7.8
Entertainment
7.2
Boarding
7.8
Reviews
1 / 20
4.0
OkayAbhisek,Aug 2026
JFK - AMS
Related info for your journey
Find useful and relevant information for your journey from San Diego to Portugal. 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 San Diego to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portugal by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Portugal by cabin class
Find flights from San Diego to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Portugal flights
Browse other San Diego and Portugal flight options. Last updated on September 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Portugal flights
Consider these flights traveling from San Diego to Portugal.
Fly to Portugal regions
Consider these flights traveling to Portugal regions.
Top 6 airlines flying from San Diego to Portugal
Discover the top 6 airlines that operate flights from San Diego to Portugal. 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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$491 | Average$1,042 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$505 | Average$1,020 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$505 | Average$987 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$520 | Average$1,130 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$520 | Average$1,009 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$552 | Average$907 | FlexibilityNo cancel fee | On-timeN/A |