Find Cheap Flights from Washington Dulles Intl to San Diego (IAD - SAN)

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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:
December
Most popular time to fly
15%
expected price increase
Average Price:
$503
(avg. price over the last 2 weeks)
Good Deal:
$347
or less (round trip)

When to Book Flights from Washington Dulles Intl to San Diego

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 $347 or less.
The cheapest flight from Washington Dulles Intl to San Diego was found 90 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 14% 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 Washington Dulles Intl to San Diego Flights

How long does a flight from Washington Dulles Intl to San Diego take?
An average nonstop flight takes 5h 21m, covering a distance of 2248 miles.
How many flights are there between Washington Dulles Intl and San Diego?
There are 171 (nonstop) flights between Washington Dulles Intl and San Diego per week, averaging 24 per day.
Which airlines provide the cheapest flights from Washington Dulles Intl to San Diego?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($157), Frontier ($223) and United ($317).
Do I need a passport to fly between Washington Dulles Intl and San Diego?
No.
Which airlines fly most frequently between Washington Dulles Intl and San Diego?
United (9 times daily), South African (4 times daily), Brussels Airlines (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington Dulles Intl to San Diego?
For Washington Dulles Intl to San Diego, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from San Diego back to Washington Dulles Intl, the best deals are generally found on Friday, with Monday being the most expensive.

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

Airports
Origin
Washington
$157
only
$157
Destination
San Diego
$157
only
$157
Mon, Jan 22
IAD
SAN
9h 05m
Fri, Jan 26
SAN
IAD
6h 54m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 5
IAD
SAN
10h 35m
Thu, Dec 7
SAN
IAD
11h 49m
Trip: 3 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 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.

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.

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

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.

Sat, Dec 2
IAD
SAN
5h 33m
Tue, Dec 5
SAN
IAD
4h 45m
Trip: 4 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SAN
Excellent 8.0

On board device entertainment.

Lack of seat space in the back, have to pay for wifi.

IAD
SAN
Excellent 10.0

Fast, friendly, on time

none

IAD
SAN
Okay 4.3

Newer aircraft.

Chaotic self-service check in at IAD, shifting airline responsibilities (like attaching baggage tags), to passengers; boarding extremely slow; new seats uncomfortable, with seriously reduced storage in seat-back; to watch movies you have to pay for DirectTV. A race to the bottom on service in all respects.

IAD
SAN
Mediocre 2.0

They were able to book another direct flight for me

I had to wait 6 hours before they informed us that the flight would be canceled. They kept delaying the flight instead of proactively booking passengers on other flights.

IAD
SAN
Good 6.6

It was hot...the whole flight

Hot hot hot

Fri, Jan 19
IAD
SAN
9h 05m
Fri, Jan 26
SAN
IAD
6h 54m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 6
IAD
SAN
7h 27m
Fri, Feb 9
SAN
IAD
29h 31m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Feb 3
IAD
SAN
11h 41m
Mon, Feb 12
SAN
IAD
10h 39m
Trip: 10 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
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

PBI
ISP
Mediocre 2.0

Was unable to make it

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

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

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.

Wed, Feb 7
IAD
SAN
11h 41m
Sun, Feb 11
SAN
IAD
10h 39m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 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

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.

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

MIA
CVG
Good 6.0

More snack/food options

Sat, Apr 28
IAD
SAN
15h 38m
Tue, May 1
SAN
IAD
15h 45m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 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.

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.

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

Fri, Jan 19
IAD
SAN
24h 09m
Sat, Jan 27
SAN
IAD
10h 59m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 15
IAD
SAN
15h 16m
Tue, May 22
SAN
IAD
15h 45m
Trip: 8 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
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.

MIA
CVG
Good 6.0

More snack/food options

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

Tue, Dec 19
IAD
SAN
5h 36m
Wed, Jan 3
SAN
IAD
4h 46m
Trip: 16 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

IAD
SAN
Excellent 10.0

Fast, friendly, on time

none

IAD
SAN
Excellent 10.0

Service was nice

It would be nice to get some regular free snacks on board, instead of having to pay for every tiny thing.

IAD
SAN
Mediocre 2.0

They were able to book another direct flight for me

I had to wait 6 hours before they informed us that the flight would be canceled. They kept delaying the flight instead of proactively booking passengers on other flights.

IAD
SAN
Excellent 8.0

The in-flight streaming of movies actually worked pretty well -- just be sure to install United app on tablet if you want to use that instead of phone.

An extra 1 inch between seats would make the difference in allowing passengers to open a small laptop and position it so they can simultaneously type and see the screen at a viewable angle.

Thu, Mar 1
IAD
SAN
10h 56m
Sun, Mar 4
SAN
IAD
11h 08m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 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.

PHL
MIA
Excellent 10.0

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

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.

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

PVD
TPA
Excellent 9.3

Cheap, comfortable and friendly staff

Getting off the plane took forever on both legs.

Tue, Jan 9
IAD
SAN
5h 41m
Sat, Jan 13
SAN
IAD
4h 42m
Trip: 5 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SAN
Excellent 10.0

Fast, friendly, on time

none

IAD
SAN
Good 6.6

It was hot...the whole flight

Hot hot hot

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

IAD
SAN
Good 7.0

Flight attendant was extraordinarily kind, especially for the couple sitting next to me with their adorable 7-week old baby.

IAD
SAN
Excellent 8.0

On board device entertainment.

Lack of seat space in the back, have to pay for wifi.

Fri, Mar 2
IAD
SAN
10h 56m
Sat, Mar 3
SAN
IAD
11h 08m
Trip: 2 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MIA
CVG
Good 6.0

More snack/food options

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

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

PBI
ISP
Mediocre 2.0

Was unable to make it

DEN
ORD
Okay 5.3

Low cost

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

Sat, Feb 3
IAD
SAN
5h 41m
Tue, Feb 6
SAN
IAD
4h 42m
Trip: 4 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SAN
Okay 4.0

Gate agent was nice and efficient

Flight attendants were lazy and boarding process sucks. Southwest is much better.

IAD
SAN
Excellent 8.0

The in-flight streaming of movies actually worked pretty well -- just be sure to install United app on tablet if you want to use that instead of phone.

An extra 1 inch between seats would make the difference in allowing passengers to open a small laptop and position it so they can simultaneously type and see the screen at a viewable angle.

IAD
SAN
Okay 4.3

Newer aircraft.

Chaotic self-service check in at IAD, shifting airline responsibilities (like attaching baggage tags), to passengers; boarding extremely slow; new seats uncomfortable, with seriously reduced storage in seat-back; to watch movies you have to pay for DirectTV. A race to the bottom on service in all respects.

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

IAD
SAN
Good 6.6

It was hot...the whole flight

Hot hot hot

Sat, Mar 3
IAD
SAN
5h 21m
Tue, Mar 6
SAN
IAD
4h 37m
Trip: 4 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SAN
Okay 5.0

More room and fast boarding.

United WiFi was in and out and couldn't watch anymore movies on my Becky's running android 7.0 nougat. Connected iPad and didn't finish movie because WiFi dropped.

IAD
SAN
Okay 4.0

Gate agent was nice and efficient

Flight attendants were lazy and boarding process sucks. Southwest is much better.

SFO
SAN
Excellent 8.0

Boarding was very easy , no long line , trip was on time .

IAD
SAN
Good 6.6

It was hot...the whole flight

Hot hot hot

IAD
SAN
Good 7.0

Flight attendant was extraordinarily kind, especially for the couple sitting next to me with their adorable 7-week old baby.

Mon, Nov 20
IAD
SAN
9h 20m
Sat, Nov 25
SAN
IAD
15h 20m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 12
IAD
SAN
21h 31m
Tue, Apr 17
SAN
IAD
8h 07m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 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.

PHL
MIA
Excellent 10.0

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

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.

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

Mon, Feb 26
IAD
SAN
9h 58m
Mon, Mar 5
SAN
IAD
11h 08m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Nov 30
IAD
SAN
5h 31m
Tue, Dec 12
SAN
IAD
4h 45m
Trip: 13 days
6.7GoodShow reviews
Overall 6.7 Good
Based on 39 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SAN
Excellent 10.0

Fast, friendly, on time

none

IAD
SAN
Okay 4.0

Gate agent was nice and efficient

Flight attendants were lazy and boarding process sucks. Southwest is much better.

IAD
SAN
Excellent 8.0

On board device entertainment.

Lack of seat space in the back, have to pay for wifi.

IAD
SAN
Mediocre 2.0

They were able to book another direct flight for me

I had to wait 6 hours before they informed us that the flight would be canceled. They kept delaying the flight instead of proactively booking passengers on other flights.

IAD
SAN
Excellent 10.0

Service was nice

It would be nice to get some regular free snacks on board, instead of having to pay for every tiny thing.

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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.