$323+ Cheap flights from San Antonio (SAT) to Heathrow (LHR)
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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LHR
Nov 8 — Nov 151
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Heathrow 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
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Cheapest flights from San Antonio to HeathrowExplore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
Explore the most affordable flight options available from San Antonio to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
This KLM deal was found by Cheapflights users on 10/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:32 pm -
1 stop13h 08m
Mon 11/3010:50 am -
1 stop17h 16m
Deal found 10/5![KLM logo]()
$866
This Expedia deal was found by Cheapflights users on 10/5. 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.
Mon 11/212:45 pm -
1 stop15h 15m
Tue 11/177:30 am -
2 stops22h 25m
Deal found 10/5![Iberia logo]()
$908
This Iberia deal was found by Cheapflights users on 10/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:22 am -
1 stop16h 38m
Mon 11/237:40 pm -
2 stops18h 54m
Deal found 10/8![Iberia logo]()
$909
This Iberia deal was found by Cheapflights users on 10/7. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:45 pm -
1 stop13h 40m
Wed 1/137:40 pm -
2 stops18h 52m
Deal found 10/7![Iberia logo]()
$910
This Iberia deal was found by Cheapflights users on 10/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:45 pm -
1 stop13h 40m
Thu 1/147:30 am -
2 stops19h 27m
Deal found 10/8![Iberia logo]()
$911
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/295:30 am -
2 stops19h 40m
Thu 12/109:00 am -
2 stops19h 52m
Deal found 10/6![United Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 10/8. 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 12/3011:47 am -
1 stop13h 58m
Thu 1/148:40 am -
2 stops18h 12m
Deal found 10/8![Delta logo]()
$914
This Virgin Atlantic deal was found by Cheapflights users on 10/5. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:00 am -
2 stops14h 20m
Tue 11/176:30 am -
2 stops16h 55m
Deal found 10/5![Virgin Atlantic logo]()
$916
This Delta deal was found by Cheapflights users on 10/4. 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.
Mon 11/23:05 pm -
2 stops16h 45m
Tue 11/1710:00 am -
2 stops18h 06m
Deal found 10/4![Delta logo]()
$919
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 11/37:20 am -
2 stops22h 30m
Mon 11/911:05 am -
2 stops42h 29m
Deal found 10/4![United Airlines logo]()
$920
This Delta deal was found by Cheapflights users on 10/7. 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 12/210:54 am -
2 stops16h 31m
Wed 12/1611:30 am -
2 stops19h 05m
Deal found 10/7![Delta logo]()
$923
Best flights from San Antonio to HeathrowDiscover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
Discover carefully curated flight deals from San Antonio to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
This Delta deal was found by Cheapflights users on 10/5. 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.
Wed 12/3011:47 am -
2 stops16h 43m
Thu 1/1411:45 am -
2 stops18h 43m
Deal found 10/5![Delta logo]()
$918
This United Airlines deal was found by Cheapflights users on 10/6. 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 12/3011:50 am -
2 stops17h 00m
Thu 1/141:00 pm -
2 stops29h 06m
Deal found 10/6![United Airlines logo]()
$926
This Virgin Atlantic deal was found by Cheapflights users on 10/6. 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.
Fri 12/410:54 am -
2 stops13h 56m
Tue 12/86:30 am -
2 stops17h 01m
Deal found 10/6![Virgin Atlantic logo]()
$966
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. 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 12/41:45 pm -
2 stops20h 15m
Tue 12/86:40 am -
3 stops23h 25m
Deal found 10/6![Scandinavian Airlines logo]()
$991
This American Airlines deal was found by Cheapflights users on 10/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:28 pm -
1 stop12h 32m
Tue 11/38:20 am -
1 stop14h 42m
Deal found 10/3![American Airlines logo]()
$991
This Delta deal was found by Cheapflights users on 10/6. 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 10/2711:36 am -
2 stops14h 29m
Wed 11/48:40 am -
2 stops18h 30m
Deal found 10/6![Delta logo]()
$966
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 10/277:20 am -
2 stops23h 30m
Wed 11/41:00 pm -
2 stops40h 37m
Deal found 10/4![United Airlines logo]()
$966
This Virgin Atlantic deal was found by Cheapflights users on 10/4. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:48 am -
1 stop20h 27m
Sun 10/2510:55 am -
1 stop18h 18m
Deal found 10/4![Virgin Atlantic logo]()
$1,041
This Delta deal was found by Cheapflights users on 10/7. 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 10/267:50 am -
2 stops18h 55m
Tue 11/1011:45 am -
2 stops17h 09m
Deal found 10/7![Delta logo]()
$966
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Fri 10/3011:45 am -
1 stop14h 55m
Sun 11/11:00 pm -
2 stops40h 38m
Deal found 10/4![United Airlines logo]()
$1,070
This Delta deal was found by Cheapflights users on 10/8. 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 3/68:00 am -
2 stops17h 45m
Sat 3/1311:20 am -
2 stops19h 08m
Deal found 10/8![Delta logo]()
$1,051
This United Airlines deal was found by Cheapflights users on 10/3. 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.
Tue 11/245:30 am -
3 stops43h 55m
Mon 11/301:00 pm -
2 stops53h 20m
Deal found 10/3![United Airlines logo]()
$1,086
Last-minute flights from San Antonio to HeathrowDiscover last-minute flight deals from San Antonio to Heathrow. Data last updated October 9, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Heathrow. Data last updated October 9, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/5. 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.
Mon 11/212:45 pm -
1 stop15h 15m
Tue 11/177:30 am -
2 stops22h 25m
Deal found 10/5![Iberia logo]()
$908
This Virgin Atlantic deal was found by Cheapflights users on 10/5. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:00 am -
2 stops14h 20m
Tue 11/176:30 am -
2 stops16h 55m
Deal found 10/5![Virgin Atlantic logo]()
$916
This Delta deal was found by Cheapflights users on 10/4. 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.
Mon 11/23:05 pm -
2 stops16h 45m
Tue 11/1710:00 am -
2 stops18h 06m
Deal found 10/4![Delta logo]()
$919
This United Airlines deal was found by Cheapflights users on 10/5. 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.
Mon 11/29:35 am -
1 stop16h 05m
Mon 11/911:05 am -
2 stops42h 29m
Deal found 10/5![United Airlines logo]()
$924
This American Airlines deal was found by Cheapflights users on 10/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:56 pm -
1 stop13h 29m
Tue 11/171:50 pm -
1 stop15h 06m
Deal found 10/5![American Airlines logo]()
$941
This United Airlines deal was found by Cheapflights users on 10/4. 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.
Tue 11/37:20 am -
2 stops22h 30m
Mon 11/911:05 am -
2 stops42h 29m
Deal found 10/4![United Airlines logo]()
$920
This Virgin Atlantic deal was found by Cheapflights users on 10/7. 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.
Wed 11/411:00 am -
1 stop14h 50m
Wed 11/1112:40 pm -
1 stop17h 53m
Deal found 10/7![Virgin Atlantic logo]()
$940
This Air Canada deal was found by Cheapflights users on 10/6. 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 11/159:35 am -
2 stops15h 35m
Tue 11/243:00 pm -
2 stops30h 38m
Deal found 10/6![Air Canada logo]()
$929
This Iberia deal was found by Cheapflights users on 10/8. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:22 am -
1 stop16h 38m
Mon 11/237:40 pm -
2 stops18h 54m
Deal found 10/8![Iberia logo]()
$909
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/177:20 am -
2 stops22h 30m
Tue 11/247:40 am -
1 stop21h 54m
Deal found 10/6![United Airlines logo]()
$936
This KLM deal was found by Cheapflights users on 10/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:32 pm -
1 stop13h 08m
Mon 11/3010:50 am -
1 stop17h 16m
Deal found 10/5![KLM logo]()
$866
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/295:30 am -
2 stops19h 40m
Thu 12/109:00 am -
2 stops19h 52m
Deal found 10/6![United Airlines logo]()
$913
One-way flights from San Antonio to HeathrowSearch for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
Search for one-way flight options from San Antonio to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
This Expedia deal was found by Cheapflights users on 10/7. 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.
Sun 1/108:04 am -
1 stop20h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Iberia logo]()
$323
This Expedia deal was found by Cheapflights users on 10/5. 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.
Sun 4/47:06 pm -
2 stops17h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Iberia logo]()
$331
This Delta deal was found by Cheapflights users on 10/8. 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 4/412:10 pm -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$332
This Air Canada deal was found by Cheapflights users on 10/7. 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.
Fri 1/82:00 pm -
2 stops49h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Air Canada logo]()
$343
This United Airlines deal was found by Cheapflights users on 10/7. 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 1/79:35 am -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![United Airlines logo]()
$382
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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.
Mon 11/27:15 am -
2 stops18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Aer Lingus logo]()
$427
This Cheapflightsfares deal was found by Cheapflights users on 10/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:09 pm -
2 stops18h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Aer Lingus logo]()
$428
This Cheapflightsfares deal was found by Cheapflights users on 10/6. 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 1/32:14 pm -
2 stops17h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Aer Lingus logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Sun 12/69:25 am -
3 stops29h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Multiple Airlines logo]()
$446
This Kissandfly.com deal was found by Cheapflights users on 10/6. 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 12/67:10 am -
2 stops26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Aer Lingus logo]()
$447
This Kissandfly.com deal was found by Cheapflights users on 10/6. 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.
Wed 10/147:10 am -
2 stops19h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Aer Lingus logo]()
$448
This FlightHub deal was found by Cheapflights users on 10/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:56 pm -
2 stops35h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Aer Lingus logo]()
$449
Find flight deals from San Antonio to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $866 (KLM) |
One-way from | $323 (Expedia) |
Popular in | June |
Cheapest in | March |
Average price | $974 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Heathrow 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 October 9, 2026.
Use the filters below to find and compare flights from San Antonio to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sun 4/4
12:10 pm-6:20 am
1 stop12h 10m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 1/11
2:10 pm-9:00 am
1 stop12h 50m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$332
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sat 1/9
4:25 pm-6:25 am
1 stop32h 00m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$343
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Fri 1/8
5:30 am-6:25 am
1 stop18h 55m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$382
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sat 11/7
2:56 pm-8:05 am
2 stops35h 09m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$449
Quickest round-trip
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Mon 11/2
2:20 pm-7:40 am
1 stop11h 20m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$463
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Sat 11/7
4:19 pm-7:40 am
1 stop33h 21m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$475
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Wed 12/30
11:47 am-10:30 am
2 stops16h 43m
London Heathrow
Thu 1/14
11:45 am-12:28 am
2 stops18h 43m
$918
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Wed 12/30
11:50 am-10:50 am
2 stops17h 00m
London Heathrow
Thu 1/14
1:00 pm-12:06 pm
2 stops29h 06m
$926
San AntonioLondon
SAT San Antonio - LHR London Heathrow
SATLHR
San Antonio
Fri 12/4
10:54 am-6:50 am
2 stops13h 56m
London Heathrow
Tue 12/8
6:30 am-5:31 pm
2 stops17h 01m
$966
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Heathrow in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on San Antonio-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from San Antonio-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Antonio to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Antonio with our price prediction graph.
SAT-LHR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Antonio to London Heathrow Airport
How far ahead should I book a flight from San Antonio to London Heathrow Airport?
To ensure you get the cheapest price possible for a flight from San Antonio to London Heathrow Airport, you should look to book at least 32 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Antonio to London Heathrow Airport?
Currently, March is the cheapest month in which you can book a flight from San Antonio to London Heathrow Airport (average of $874). Flying from San Antonio to London Heathrow Airport in June is currently the most expensive (average of $1,282). 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 much does it cost to fly round-trip from San Antonio to London Heathrow Airport?
Airfare is below average for this route at the moment.
San Antonio to London Heathrow Airport flights typically cost between $868 and $1,153 in January.The cheapest round-trip price found within the last 5 days was $858 on Iberia (Jan 11-Jan 19).
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated October 9, 2026.
Peruse reviews from past customers who have flown with Delta,Virgin Atlantic, andUnited Airlines from San Antonio to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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Basingstoke
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 9, 2026.
San Antonio and Heathrow flights
Browse other San Antonio and Heathrow flight options. Last updated on October 9, 2026.
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Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on October 9, 2026.
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Top 5 airlines flying from San Antonio to Heathrow
Discover the top 5 airlines that operate flights from San Antonio to Heathrow. 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 October 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$596 | Average$801 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$646 | Average$810 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$658 | Average$1,131 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$723 | Average$978 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$892 | Average$1,205 | FlexibilityNo cancel fee | On-time71% |