$477 Find Cheap Flights from San Antonio to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Portugal departing on 6/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Antonio to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$769
Porto
Porto2 stops$942
Lajes
Lajes3 stops$2,188
Lisbon
Lisbon2 stops$769
Porto
Porto2 stops$942
Lajes
Lajes3 stops$2,188

Book Cheap San Antonio to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Portugal

Do, Aug 20 - Mi, Sep 2
Scandinavian Airlines Logo
12:15 pm - 9:00 am
SAT
-
LIS
38h 45m
2 stops
Scandinavian Airlines Logo
4:25 pm - 11:18 pm
LIS
-
SAT
36h 53m
2 stops
$769Scandinavian Airlines
Mo, Jul 6 - Do, Nov 12
Delta Logo
1:20 pm - 10:45 am
SAT
-
LIS
15h 25m
1 stop
Delta Logo
5:00 am - 5:44 pm
LIS
-
SAT
18h 44m
2 stops
$797Delta
Di, Jul 7 - Di, Nov 10
Delta Logo
11:29 am - 11:15 am
SAT
-
LIS
17h 46m
2 stops
Delta Logo
5:00 am - 8:22 pm
LIS
-
SAT
21h 22m
2 stops
$801Delta
Mo, Jul 6 - Mi, Nov 11
Multiple Airlines Logo
4:00 pm - 2:55 pm
SAT
-
LIS
16h 55m
2 stops
Multiple Airlines Logo
11:25 am - 12:28 am
LIS
-
SAT
19h 03m
2 stops
$802Multiple Airlines
Mo, Jul 6 - Di, Nov 10
Multiple Airlines Logo
1:20 pm - 10:45 am
SAT
-
LIS
15h 25m
1 stop
Multiple Airlines Logo
5:30 am - 5:44 pm
LIS
-
SAT
18h 14m
2 stops
$804Multiple Airlines
Mo, Jul 6 - Di, Nov 10
Air France Logo
11:30 am - 10:45 am
SAT
-
LIS
17h 15m
2 stops
Air France Logo
5:30 am - 5:44 pm
LIS
-
SAT
18h 14m
2 stops
$808Air France
Di, Jul 7 - Sa, Nov 7
Delta Logo
5:00 pm - 5:50 pm
SAT
-
LIS
18h 50m
2 stops
Delta Logo
5:30 am - 8:22 pm
LIS
-
SAT
20h 52m
2 stops
$809Delta
Mo, Jul 6 - Fr, Nov 13
Delta Logo
5:25 am - 10:45 am
SAT
-
LIS
23h 20m
2 stops
Delta Logo
11:15 am - 10:27 pm
LIS
-
SAT
17h 12m
2 stops
$812Delta
Di, Jul 7 - Fr, Nov 13
Delta Logo
5:00 pm - 5:50 pm
SAT
-
LIS
18h 50m
2 stops
Delta Logo
11:15 am - 10:27 pm
LIS
-
SAT
17h 12m
2 stops
$816Delta
Do, Apr 30 - Fr, Mai 8
Delta Logo
4:44 pm - 5:50 pm
SAT
-
LIS
19h 06m
2 stops
Delta Logo
5:00 am - 5:20 pm
LIS
-
SAT
18h 20m
2 stops
$840Delta
Booking Insights

KAYAK's insights & trends for San Antonio to Portugal flights

Get data-powered insights and trends into flights from San Antonio to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Antonio to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to Portugal is January, when tickets cost $513 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,526 and $1,307 respectively.

Good to know

Low seasonJanuary
Cheapest flight$477
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from San Antonio to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from San Antonio to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Antonio to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Antonio to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from San Antonio to Portugal

 
Need help choosing which airline to fly with from San Antonio to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8410 reviews
8.1Boarding
7.2Food
7.9Comfort
7.8Entertainment
8.5Crew
Airline reviews

Boarding was good. The flight was on time ( arrival was 20 minutes early). Inflight service was average ( US airlines have not mastered the skills of customer service yet). The food was mediocre. “ breakfast “ was downright awful and insulting. It was a piece of dough with mon descript filling that was supposed to be cheese omelette).

6.0 GoodAnonymous, Apr 2026
DTW - AMS
Read more Delta reviews

Boarding was good. The flight was on time ( arrival was 20 minutes early). Inflight service was average ( US airlines have not mastered the skills of customer service yet). The food was mediocre. “ breakfast “ was downright awful and insulting. It was a piece of dough with mon descript filling that was supposed to be cheese omelette).

The tray table was broken and the food was terrible.

The gentleman at the gate I think his name is RIE was exceptional

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

No entertainment. Plane was so small had to pink tag a carry on ive used for 20 years easily on board. The fact the flight got in at midnight, had to wait for crew in fort wayne to allow the plane to approach the gate, THEN had to wait for bag on jet bridge made experience irritating at best.

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

Would have been better if there was a nonstop flight from Tampa to Norfolk or Tampa to New Port News.

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Overall ok. Best part has always been the sundae dessert.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

WiFi wasn’t available to economy until the end of the flight.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Everything you need to know for your flight from San Antonio to Portugal

Information on your arrival and departure airports