Cheapest€234.96
- Delta Air Lines DA215006:084h 9m10:17Boston BEDSan Antonio SAT
Door to door 7h 19mCO2 719.8 kgChanges 0Fixed, no changes
Traveling from Boston to San Antonio costs €234.96 at the cheapest and takes 7h 16m door to door at the fastest, across 1 mode and 1 operator. The route covers 2,926 km. Cheapest is by flight, fastest is by flight.
At a glance
- Distance
- 2,926 km
- Fastest
- 7h 16m
- Average
- 7h 34m
- Services per day
- 5
- Cheapest
- €234.96
- CO2 per passenger
- 719.8 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on September 28, 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 7h 19m | 4h 9m | 3h 10m | €290.42 | 719.8 kg | 3 |
- 7h 19mFastest, by Flight
- €290.42Cheapest, by Flight
- 719.8 kgLowest CO2, by Flight
- 2,926 kmDistance traveled
The cheapest and the fastest on September 28, 2026
Two journeys we can sell today, with the service number each operator files them under.
Lowest CO2€285.24
- Amtrak A310507:303h 3m10:33Boston South StationPhiladelphia 30th Street
- American Airlines AA119611:383h 41m15:19Philadelphia ILGSan Antonio SAT
Changes at Philadelphia, with 65 minutes between services and a walk of about 14 minutes.
Door to door 9h 46mCO2 628.1 kgChanges 1Fixed, no changes
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
Checking the live timetables.
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of traveling are marked.
| Cheapest fare by mode and day for Boston to San Antonio | MonSep 14 | TueSep 15 | WedSep 16 | ThuSep 17 | FriSep 18 | SatSep 19 | SunSep 20 | MonSep 21 | TueSep 22 | WedSep 23 | ThuSep 24 | FriSep 25 | SatSep 26 | SunSep 27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Train | €600.39 | €540.44 | €375.44 | €536.04 | €536.04 | €510.74 | €319.89 | €278.64 | €286.89 | €343.54 | €373.79 | €353.99 | €391.94 | €362.24 |
| Flight | €486.30 | €485.71 | €432.61 | €508.72 | €552.38 | €476.86 | €392.49 | €290.42 | €314.61 | €322.87 | €424.35 | €390.13 | €419.63 | €326.41 |
Cheapest day: 2026-09-28 · €234.96
That is the traveling done. What happens after you walk out into San Antonio is not something we sell.
A room in San Antonio for the night the flight gets in
Sort by distance from San Antonio Station and you can see which places are ten minutes on foot and which are not.
Search San Antonio on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Boston to San Antonio
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €305.1790 days
- €230.2460 days
- €211.5445 days
- €191.7430 days
- €296.9121 days
- €326.4114 days
- €319.897 days
- €375.443 days
- €486.301 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €191.74.
- How much it moves
- The gap between the cheapest and most expensive lead time is 154 percent. The most expensive point is €486.30, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 30 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €319.89Sun
- €278.64Mon
- €286.89Tue
- €322.87Wed
- €373.79Thu
- €353.99Fri
- €391.94Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €485.71Sep
- €243.99Oct
- €216.67Nov
- €222.57Dec
- €216.08Jan
- €180.19Feb
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 20% of the services we sell on this corridor run through without a change. The remaining 80% involve one connection.
- How far it really runs
- The route covers 2,926 km against 2,840 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Philadelphia, Louisville, Nashville, New York City. The gap between arriving and leaving is 65 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 15 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Boston at 06:08 and the last at 07:30, across 3 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Boston
Rail
- Boston South Station
- Boston Landing station
- Eastern Railroad Depot (Boston)
Bus
- Boston South Station
- Alewife
Air
- BOS
- BED
Ferry
- Encore Boston Harbor Ferry Landing
- East Boston 6 New Street Ferry Landing
San Antonio
Rail
- San Antonio Station
- Sunset Station
- International & Great Northern Railroad Passenger Station
Bus
- San Antonio Greyhound Station
- Centro Plaza
Air
- SAT
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Delta Air Lines | €234.96 | 7h 16m | 740 km/h | Fixed fare | Not published |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €191.50 | 82% |
| Taxes | €34.47 | 15% |
| Supplier fees | €7.00 | 3% |
| Our service fee | €1.99 | 1% |
| Total you pay | €234.96 | 100% |
Check-in is at three and you will be in San Antonio well before then. Lockers are not something we run.
Where to leave your bags in San Antonio
Priced by the bag and by the day, booked before you get there, and insured while it sits.
Check San Antonio on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Boston to San Antonio
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Boston to San Antonio?
The fastest journey from Boston to San Antonio takes 7h 16m door to door, of which 4h 9m is spent moving, on the flight. Most services take around 7h 34m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Boston to San Antonio?
The cheapest fare from Boston to San Antonio is €234.96, checked on September 13, 2026. A typical fare across the next three weeks is €366.53. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Boston to San Antonio?
The cheapest way from Boston to San Antonio is by flight, at €290.42 for one passenger on September 28, 2026. That journey takes 7h 19m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
When should I book Boston to San Antonio?
Fares from Boston to San Antonio bottom out around 30 days before departure, at €191.74. Across the whole booking window the gap between the cheapest and the most expensive lead time is 154 percent, measured on September 13, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Boston to San Antonio?
Monday is the cheapest day to depart from Boston to San Antonio, at €278.64. That is the median of 21 priced departure days across the next three weeks, checked on September 13, 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Boston to San Antonio?
February is the cheapest of the next 6 months to travel from Boston to San Antonio, at €180.19 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs service from Boston to San Antonio?
1 operators sell services from Boston to San Antonio across 1 mode: Delta Air Lines. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Boston to San Antonio?
20 percent of the services we sell from Boston to San Antonio are direct. The rest connect at Philadelphia, Louisville, Nashville, New York City, with about 65 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
Which station or terminal do services from Boston to San Antonio use?
Services from Boston to San Antonio by flight leave from Boston BED and arrive at San Antonio SAT. Allow about 3h 10m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Boston to San Antonio?
0 of the 1 operators we sell from Boston to San Antonio allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Boston to San Antonio on September 13, 2026: 2926 km of route against 2840 km in a straight line, 5 services a day, 1 operators, a cheapest fare of €234.96, and 7h 16m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
The trip is the easy half to plan. The days in San Antonio are the half people leave until last.
Day trips out of San Antonio and across United States
The tickets worth having in advance, because the line at the door is usually the whole morning.
See San Antonio on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Leaving Boston
Arriving in San Antonio
Leaving San Antonio
- 35Places you can leave for
- 3Countries
- 16Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.