Find Cheap Flights from San Antonio to Washington Dulles Intl (SAT - IAD)

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Sat 11/18
Sat 11/25
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
February
Most popular time to fly
7%
expected price increase
Average Price:
$440
(avg. price over the last 2 weeks)
Good Deal:
$327
or less (round trip)

When to Book Flights from San Antonio to Washington Dulles Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $327 or less.
The cheapest flight from San Antonio to Washington Dulles Intl was found 24 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be January, February and March. The cheapest month to fly is October.
Morning departure is around 68% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Antonio to Washington Dulles Intl Flights

How long does a flight from San Antonio to Washington Dulles Intl take?
An average nonstop flight takes 3h 10m, covering a distance of 1361 miles.
How many flights are there between San Antonio and Washington Dulles Intl?
There are 104 (nonstop) flights between San Antonio and Washington Dulles Intl per week, averaging 14 per day.
Which airlines provide the cheapest flights from San Antonio to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($77), Multiple Airlines ($150) and American Airlines ($196).
Do I need a passport to fly between San Antonio and Washington Dulles Intl?
No.
Which airlines fly most frequently between San Antonio and Washington Dulles Intl?
Air Canada (4 times daily), United (4 times daily), Lufthansa (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Antonio to Washington Dulles Intl?
For San Antonio to Washington Dulles Intl, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington Dulles Intl back to San Antonio, the best deals are generally found on Friday, with Monday being the most expensive.

Book cheap flights from San Antonio to Washington Dulles Intl (round-trip)

Airports
Origin
San Antonio
$77
only
$77
Destination
Washington
$77
only
$77
Wed, Nov 29
SAT
IAD
3h 10m
Sat, Dec 2
IAD
SAT
3h 52m
Trip: 4 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

SAT
IAD
Mediocre 2.0

Nothing

The attendant was rude on two different occasions. he needs to be trained in customer services. They Charge for everything. what's the point of giving a food price if you end up charging more than a better airline at the end of the day. terrible terrible airline.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

Fri, Dec 15
SAT
IAD
3h 12m
Mon, Dec 18
IAD
SAT
6h 54m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 1
SAT
IAD
3h 10m
Wed, Dec 6
IAD
SAT
3h 52m
Trip: 6 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
DEN
Okay 4.6

The seats were clean; the cabin looked very nice. The plane got me from point A to B safely. smoothest Lansing ever!

Flight was delayed 2.5 hours. No communication from the cockpit, 2 out of the 4 flight attendants we really crabby. Undersea storage was unusually small. I’m 5’8” and my knees were pressed against the seat in front of me and the seats are hard. My legs were numb for part of the trip.

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

PBI
ISP
Mediocre 2.0

Was unable to make it

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

Wed, Jan 10
SAT
IAD
3h 12m
Wed, Jan 17
IAD
SAT
4h 03m
Trip: 8 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ORD
Excellent 10.0

On time. Very organized.

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

MCO
DEN
Okay 4.6

The seats were clean; the cabin looked very nice. The plane got me from point A to B safely. smoothest Lansing ever!

Flight was delayed 2.5 hours. No communication from the cockpit, 2 out of the 4 flight attendants we really crabby. Undersea storage was unusually small. I’m 5’8” and my knees were pressed against the seat in front of me and the seats are hard. My legs were numb for part of the trip.

PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

Sat, Jan 13
SAT
IAD
3h 12m
Wed, Jan 17
IAD
SAT
4h 03m
Trip: 5 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

PBI
ISP
Mediocre 2.0

Was unable to make it

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

DEN
ORD
Excellent 10.0

On time. Very organized.

Fri, Mar 2
SAT
IAD
4h 39m
Sun, Mar 4
IAD
SAT
5h 32m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25178 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CHO
ORD
Good 7.6

It was a little hot in the plane at during start and touchdown

SAL
MIA
Excellent 8.6

There was no individual entertainment on board (TV’s, internet, etc)

LAX
MIA
Good 7.6

Movies, clean, efficient

Paying of my small Checked bag

JUL
LIM
Okay 4.0

The bag search was very thorough and many employees were wearing their Peru jerseys under their uniforms.

Everything else. Flight was delayed almost four hours with no explanation. Received multiple calls from Avianca but all in Spanish until fifth one in English hung up once we confirmed we understood there was a delay. Staff communicated different directions. Only one cafe to wait in. Substitute breakfast served was underwhelming. Plane was incredibly dated with life vests strewn about/not tucked away. Upon deboarding, incredibly unclear that we had to completely exit and go back through security, meaning we had no time between flights for the restroom or to buy water.

MBJ
PHL
Excellent 8.6

AA flight was relaxed and smooth, crew was respectful and warm can’t think

Can’t think of anything I didn’t like

Sat, Feb 3
SAT
IAD
3h 12m
Mon, Feb 5
IAD
SAT
4h 03m
Trip: 3 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

SAT
IAD
Mediocre 2.0

Nothing

The attendant was rude on two different occasions. he needs to be trained in customer services. They Charge for everything. what's the point of giving a food price if you end up charging more than a better airline at the end of the day. terrible terrible airline.

Sat, Feb 3
SAT
IAD
6h 46m
Mon, Feb 5
IAD
SAT
7h 36m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 13528 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DTW
EWR
Excellent 8.0

Boarding was quick. Staff and crew were friendly. Everything went well despite the 30 min delay we had on the runway. They gave us snacks and we ended up still arriving on time.

YUL
ATL
Good 6.0

Fligth were on time

My flight from Montreal to Atlanta was 2:30 min Left at 6:10 arrive at 8:30 roughly Tried twice to get to my connection earlier and get 9:30 instead of 12:09 fligth to Daytona Delta was not flexible to allow me to book saying i did not have 55 min in between fligth which i had than lear n it will cost $75.00 to change the fligth - What? Very disappointed of Delta - lost 3 hrs at the airport today

JFK
JAX
Good 7.6

Delta never used to be my first choice in airlines, but of my recent experience with them has been excellent. The people from the counter to the plane have been professional and courteous. This is why I will fly with them more frequently.

ATL
MCO
Excellent 10.0

Amazing experience thank you Delta

LAX
GUA
Mediocre 2.0

Nothing worst flight I've ever had.

Everything Delta was so poor quality!!! The flight attendants were not helpful.

Fri, Mar 2
SAT
IAD
3h 14m
Mon, Mar 5
IAD
SAT
3h 47m
Trip: 4 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

DEN
ORD
Excellent 10.0

On time. Very organized.

FSD
DEN
Okay 4.6

The scheduled plane had a mechanical problem so we deplaned for alternative plan. It took six long hours to get another plane in. Meantime passengers stood in line for hours to make other arrangements. It would have been appropriate for the airline to call in extra staff to help stranded passengers. We missed the scheduled connecting flight and a tour. We got in at 1:00 am, 12 hours later than planned. We had meetings next day and were very tired because we got in so late

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

Fri, Dec 15
SAT
IAD
3h 12m
Mon, Dec 18
IAD
SAT
4h 03m
Trip: 4 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

PHL
MIA
Excellent 10.0

Same as all the other airlines in my opinion. Just way more afreoadable.

SAT
IAD
Mediocre 2.0

Nothing

The attendant was rude on two different occasions. he needs to be trained in customer services. They Charge for everything. what's the point of giving a food price if you end up charging more than a better airline at the end of the day. terrible terrible airline.

Thu, Nov 23
SAT
IAD
26h 34m
Wed, Nov 29
IAD
SAT
8h 18m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25178 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PHL
PHX
Okay 5.0

Arrived safely and on time.

No power outlets at seats.

BDL
CLT
Okay 4.0

No baggage controls from seat 18 to 28 no bags would fit. As we exited all the front rows we're waiting to get there bags stored in back of planes overhead bins. That's just not right, especially when they charge us extra to take a bag for overhead bins storage.

SAL
MIA
Excellent 8.6

There was no individual entertainment on board (TV’s, internet, etc)

MCI
DFW
Mediocre 2.0

I cancelled this flight months ago, yet it was still in your records

JUL
LIM
Okay 4.0

The bag search was very thorough and many employees were wearing their Peru jerseys under their uniforms.

Everything else. Flight was delayed almost four hours with no explanation. Received multiple calls from Avianca but all in Spanish until fifth one in English hung up once we confirmed we understood there was a delay. Staff communicated different directions. Only one cafe to wait in. Substitute breakfast served was underwhelming. Plane was incredibly dated with life vests strewn about/not tucked away. Upon deboarding, incredibly unclear that we had to completely exit and go back through security, meaning we had no time between flights for the restroom or to buy water.

Mon, Mar 12
SAT
IAD
4h 46m
Thu, Mar 15
IAD
SAT
5h 13m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25178 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CHO
ORD
Good 7.6

It was a little hot in the plane at during start and touchdown

FAT
DFW
Excellent 10.0

Nice amount of leg room!!!

Nothing

PHL
PHX
Okay 5.0

Arrived safely and on time.

No power outlets at seats.

BDL
CLT
Okay 4.0

No baggage controls from seat 18 to 28 no bags would fit. As we exited all the front rows we're waiting to get there bags stored in back of planes overhead bins. That's just not right, especially when they charge us extra to take a bag for overhead bins storage.

MBJ
PHL
Excellent 8.6

AA flight was relaxed and smooth, crew was respectful and warm can’t think

Can’t think of anything I didn’t like

Sat, Nov 25
SAT
IAD
3h 10m
Mon, Nov 27
IAD
SAT
3h 52m
Trip: 3 days
5.5OkayShow reviews
Overall 5.5 Okay
Based on 3 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
ORD
Excellent 10.0

On time. Very organized.

DEN
ORD
Okay 5.3

Low cost

They make you pay for everything. Even peanuts. No entertainment.

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.