$470+ Cheap flights from Boston (BOS) to Santander (SDR)
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SDR
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Santander 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 Boston to Santander
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to SantanderExplore the most affordable flight options available from Boston to Santander. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Boston to Santander. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Orbitz deal was found by Cheapflights users on 4/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:50 pm
BOS
- SDR
1 stop13h 15m
Iberia
Wed 5/66:30 am
SDR
- BOS
1 stop19h 20m
Iberia
Deal found 4/26![Iberia logo]()
$838
This lastminute.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:35 pm
BOS
- SDR
1 stop12h 30m
Iberia
Thu 8/276:30 am
SDR
- BOS
1 stop15h 40m
Iberia
Deal found 4/24![Iberia logo]()
$884
This Iberia deal was found by Cheapflights users on 4/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:40 pm
BOS
- SDR
1 stop17h 20m
Iberia
Wed 8/1210:05 am
SDR
- BOS
1 stop15h 45m
Iberia
Deal found 4/27![Iberia logo]()
$945
This Mytrip deal was found by Cheapflights users on 4/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:20 pm
BOS
- SDR
2 stops18h 45m
Multiple Airlines
Fri 6/510:35 am
SDR
- BOS
2 stops18h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$988
This lastminute.com deal was found by Cheapflights users on 4/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:40 pm
BOS
- SDR
1 stop9h 50m
Iberia
Mon 5/1810:05 am
SDR
- BOS
1 stop15h 45m
Iberia
Deal found 4/28![Iberia logo]()
$1,004
This Trip.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:50 pm
BOS
- SDR
1 stop28h 10m
Iberia
Thu 4/306:40 pm
SDR
- BOS
1 stop32h 25m
Iberia
Deal found 4/24![Iberia logo]()
$1,027
This Iberia deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:30 pm
BOS
- SDR
1 stop17h 30m
Iberia
Thu 11/196:30 am
SDR
- BOS
2 stops19h 15m
Iberia
Deal found 4/24![Iberia logo]()
$1,060
Best flights from Boston to SantanderDiscover carefully curated flight deals from Boston to Santander that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Boston to Santander that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This lastminute.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:35 pm
BOS
- SDR
1 stop12h 30m
Iberia
Thu 8/2710:05 am
SDR
- BOS
2 stops17h 40m
Iberia
Deal found 4/24![Iberia logo]()
$982
This Mytrip deal was found by Cheapflights users on 4/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:30 pm
BOS
- SDR
3 stops23h 35m
Multiple Airlines
Fri 6/510:35 am
SDR
- BOS
2 stops18h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,028
This Expedia deal was found by Cheapflights users on 4/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 pm
BOS
- SDR
2 stops56h 45m
Iberia
Fri 6/56:30 am
SDR
- BOS
1 stop18h 40m
Iberia
Deal found 4/26![Iberia logo]()
$1,123
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
Thu 10/2211:00 pm
BOS
- SDR
2 stops12h 00m
Iberia
Wed 11/410:05 am
SDR
- BOS
1 stop11h 25m
Iberia
Deal found 4/27![Iberia logo]()
$1,171
This Iberia deal was found by Cheapflights users on 4/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:21 pm
BOS
- SDR
2 stops22h 39m
Iberia
Tue 8/118:05 pm
SDR
- BOS
2 stops26h 05m
Iberia
Deal found 4/27![Iberia logo]()
$1,189
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
Thu 10/225:40 pm
BOS
- SDR
1 stop9h 50m
Multiple Airlines
Wed 11/46:30 am
SDR
- BOS
2 stops13h 50m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,567
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:35 pm
BOS
- SDR
1 stop10h 20m
Iberia
Thu 8/279:40 am
SDR
- BOS
2 stops15h 23m
Iberia
Deal found 4/24![Iberia logo]()
$1,231
This Iberia deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:40 pm
BOS
- SDR
1 stop9h 50m
Iberia
Tue 8/185:40 pm
SDR
- BOS
1 stop28h 30m
Iberia
Deal found 4/24![Iberia logo]()
$1,301
This oojo deal was found by Cheapflights users on 4/27. 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.
Sat 7/2512:21 pm
BOS
- SDR
2 stops14h 24m
Iberia
Sun 7/265:40 pm
SDR
- BOS
1 stop28h 30m
Iberia
Deal found 4/27![Iberia logo]()
$1,809
Last-minute flights from Boston to SantanderDiscover last-minute flight deals from Boston to Santander. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Santander. Data last updated April 29, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:50 pm
BOS
- SDR
1 stop28h 10m
Iberia
Thu 4/306:40 pm
SDR
- BOS
1 stop32h 25m
Iberia
Deal found 4/24![Iberia logo]()
$1,027
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:20 pm
BOS
- SDR
2 stops14h 35m
Multiple Airlines
Thu 4/306:40 pm
SDR
- BOS
1 stop32h 25m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,284
This Orbitz deal was found by Cheapflights users on 4/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:50 pm
BOS
- SDR
1 stop13h 15m
Iberia
Wed 5/66:30 am
SDR
- BOS
1 stop19h 20m
Iberia
Deal found 4/26![Iberia logo]()
$838
This Ovago deal was found by Cheapflights users on 4/26. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:40 pm
BOS
- SDR
1 stop21h 20m
Multiple Airlines
Wed 5/66:30 am
SDR
- BOS
1 stop19h 20m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,099
This lastminute.com deal was found by Cheapflights users on 4/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:40 pm
BOS
- SDR
1 stop9h 50m
Iberia
Mon 5/1810:05 am
SDR
- BOS
1 stop15h 45m
Iberia
Deal found 4/28![Iberia logo]()
$1,004
This Mytrip deal was found by Cheapflights users on 4/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:20 pm
BOS
- SDR
2 stops18h 45m
Multiple Airlines
Fri 6/510:35 am
SDR
- BOS
2 stops18h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$988
This Expedia deal was found by Cheapflights users on 4/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 pm
BOS
- SDR
2 stops56h 45m
Iberia
Fri 6/56:30 am
SDR
- BOS
1 stop18h 40m
Iberia
Deal found 4/26![Iberia logo]()
$1,123
One-way flights from Boston to SantanderSearch for one-way flight options from Boston to Santander. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Boston to Santander. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:40 pm
BOS
- SDR
1 stop9h 50m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$470
This British Airways deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:40 pm
BOS
- SDR
1 stop17h 20m
British Airways
Deal found 4/25![British Airways logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Fri 7/108:05 pm
BOS
- SDR
2 stops30h 40m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Fri 7/105:40 pm
BOS
- SDR
1 stop17h 20m
Iberia
Deal found 4/26![Iberia logo]()
$516
This Iberia deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/911:35 pm
BOS
- SDR
1 stop28h 05m
Iberia
Deal found 4/25![Iberia logo]()
$663
This Iberia deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:40 pm
BOS
- SDR
1 stop9h 50m
Iberia
Deal found 4/25![Iberia logo]()
$680
This Cheapflightsfares deal was found by Cheapflights users on 4/26. 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 5/245:40 pm
BOS
- SDR
1 stop9h 50m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$971
Find flight deals from Boston to Santander
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Santander (SDR). 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 April 29, 2026.
Most accurate provider | Trip.com 1 star |
|---|---|
Most trusted provider | Trip.com 3 stars |
Round-trip from | $945 (Iberia) |
One-way from | $470 (Cheapflightsfares) |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Santander 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 April 29, 2026.
Use the filters below to find and compare flights from Boston to Santander that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Thu 8/13
11:35 pm-6:05 pm
1 stop12h 30m
Santander
Thu 8/27
10:05 am-9:45 pm
2 stops17h 40m
$982
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Wed 5/27
12:30 pm-6:05 pm
3 stops23h 35m
Santander
Fri 6/5
10:35 am-10:39 pm
2 stops18h 04m
$1,028
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Wed 5/27
6:00 pm-8:45 am
2 stops56h 45m
Santander
Fri 6/5
6:30 am-7:10 pm
1 stop18h 40m
$1,123
Quickest round-trip
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Thu 10/22
11:00 pm-5:00 pm
2 stops12h 00m
Santander
Wed 11/4
10:05 am-3:30 pm
1 stop11h 25m
$1,171
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Mon 7/27
12:21 pm-5:00 pm
2 stops22h 39m
Santander
Tue 8/11
8:05 pm-4:10 pm
2 stops26h 05m
$1,189
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Sun 8/16
11:35 pm-3:55 pm
1 stop10h 20m
Santander
Thu 8/27
9:40 am-7:03 pm
2 stops15h 23m
$1,231
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Sun 8/9
5:40 pm-9:30 am
1 stop9h 50m
Santander
Tue 8/18
5:40 pm-4:10 pm
1 stop28h 30m
$1,301
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Thu 10/22
5:40 pm-9:30 am
1 stop9h 50m
Santander
Wed 11/4
6:30 am-2:20 pm
2 stops13h 50m
$1,567
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Sat 7/25
12:21 pm-8:45 am
2 stops14h 24m
Santander
Sun 7/26
5:40 pm-4:10 pm
1 stop28h 30m
$1,809
Cheapest one-way
Quickest one-way
BostonSantander
BOS - SDR
BOSSDR
Boston Logan Intl
Tue 8/18
5:40 pm-9:30 am
1 stop9h 50m
$470
Showing 1-10 of 18 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Boston-Santander flights, users find the pricing of Trip.com to be most consistent on Cheapflights vs. Trip.com Users can find the same prices on Boston-Santander flight deals on Cheapflights vs. Trip.com <90% of the time. Price accuracy is based on data collected from Boston-Santander flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Santander flights, Cheapflights users trust Trip.com the most. Trip.com 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 Boston-Santander 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 Boston to Santander
Have a flexible travel schedule? Discover the best time to fly to Santander from Boston with our price prediction graph.
BOS-SDR
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.
Reviews of airlines servicing Santander
Get insights into the airlines that provide service to Santander. 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 Santander. Reviews last updated April 29, 2026.
Read through reviews of airlines operating flights from Boston to Santander, such as Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.7
Comfort
6.7
Entertainment
6.6
Food
6.3
Overall
7.0
Boarding
7.2
Reviews
1 / 20
2.0
MediocreStiphan,Nov 2025
SVQ - MAD
Crew
7.7
Comfort
6.7
Entertainment
6.6
Food
6.3
Overall
7.0
Boarding
7.2
Reviews
1 / 20
2.0
MediocreStiphan,Nov 2025
SVQ - MAD
Related info for your journey
Find useful and relevant information for your journey from Boston to Santander. 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 Boston to Santander
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Complete your trip
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Boston and Santander flights
Browse other Boston and Santander flight options. Last updated on April 29, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on April 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Boston to Santander
Discover the top airline that operate flights from Boston to Santander. 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$809 | FlexibilityNo cancel fee | On-time77% |