San Antonio to Washington SAT → DCA, IAD
San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD)
The cheapest return found recently is $342 with Frontier Airlines, 30 Dec – 5 Jan 2027, found yesterday.
Return
The cheapest return fare on each of 6 departure dates is usually $273 to $355.
Cheapest return found recently
$342
30 Dec – 5 Jan 2027 · Frontier Airlines
San Antonio International Airport (SAT) → Washington Dulles International Airport (IAD)
Leaves 1:27 p.m. · Return leaves 6:00 p.m. · 33 h 13 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$342 30 Dec – 5 Jan 2027found yesterdaySee prices for these dates
$259 31 Oct – 9 Novfound 5 days agoSee prices for these dates
What have prices looked like?
Over 10 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $259 to $522.
10 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 6 departure dates from 31 Oct to 31 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 6-night return fares on 2 other departure dates within 3 days of 30 Dec, and none is cheaper.
Every date we hold
6 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 31 Oct – 9 Nov | $259 | Frontier Airlines | San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 2 Nov – 9 Nov | $264 | Frontier Airlines | San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 30 Nov – 15 Dec | $299 | Frontier Airlines | San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 29 Dec – 4 Jan 2027 | $363 | Frontier Airlines | San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 30 Dec – 5 Jan 2027 | $342 | Frontier Airlines | San Antonio International Airport (SAT) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 31 Dec – 6 Jan 2027 | $359 | Southwest Airlines | San Antonio International Airport (SAT) → Ronald Reagan National Airport (DCA) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
October 2026 is the cheapest month — from $259.
Airlines on the cheapest dates: Frontier Airlines, Southwest Airlines.
Premium cabin fares from San Antonio to Washington
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 30 Dec – 5 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Antonio to Washington?
Return
Not enough history yet: in 10 days of return prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
San Antonio → Baltimore
57 km from Washington
$346
$4 more than flying to Washington
30 Dec – 5 Jan 2027 · SAT → BWI · out 1 stop, back 2 stops
found yesterday
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
San Antonio → Baltimore
57 km from Washington
$175
30 Nov · SAT → BWI · 1 stop
found 5 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 30 Dec – 5 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work