Find Cheap Flights from Washington Dulles Intl to San Juan Luis Munoz Marin International (IAD - SJU)

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Good to Know

Low Season:
October
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
16%
expected price increase
Average Price:
$1325
(avg. price over the last 2 weeks)
Good Deal:
$1325
or less (round trip)

When to Book Flights from Washington Dulles Intl to San Juan Luis Munoz Marin International

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

Top tips for Finding a Cheap Flight

The cheapest flight from Washington Dulles Intl to San Juan Luis Munoz Marin International was found 71 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 June, July and August. The cheapest month to fly is October.
Morning departure is around 23% cheaper 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 Juan Luis Munoz Marin International Flights

How long does a flight from Washington Dulles Intl to San Juan Luis Munoz Marin International take?
An average nonstop flight takes 3h 45m, covering a distance of 1575 miles.
How many flights are there between Washington Dulles Intl and San Juan Luis Munoz Marin International?
There are 34 (nonstop) flights between Washington Dulles Intl and San Juan Luis Munoz Marin International per week, averaging 5 per day.
Which airlines provide the cheapest flights from Washington Dulles Intl to San Juan Luis Munoz Marin International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($188), Multiple Airlines ($223) and United ($252).
Do I need a passport to fly between Washington Dulles Intl and San Juan Luis Munoz Marin International?
Yes.
Which airlines fly most frequently between Washington Dulles Intl and San Juan Luis Munoz Marin International?
Air Canada (2 times daily), United (2 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 Juan Luis Munoz Marin International?
For Washington Dulles Intl to San Juan Luis Munoz Marin International, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Juan Luis Munoz Marin International back to Washington Dulles Intl, the best deals are generally found on Friday, with Friday being the most expensive.

Book cheap flights from Washington Dulles Intl to San Juan Luis Munoz Marin International (round-trip)

Airports
Origin
Washington
$188
only
$188
Destination
San Juan
$188
only
$188
Wed, Mar 21
IAD
SJU
10h 17m
Tue, Apr 3
SJU
IAD
9h 58m
Trip: 14 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33574 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
GRR
MCO
Excellent 10.0

Early departure. Non stop. Early arrival. Ease of travel.

ATL
LAS
Good 6.0

The crew was very friendly.

The seats were close together and not very comfortable. No entertainment, for example a movie for a 4 hour flight. You have to pay for everything. Only thing complimentary is water.

RSW
PVD
Excellent 10.0

Basic, simple. No frills but economical

Seats did not recline.. So uncomfortable

OMA
MCO
Excellent 8.0

Nice flight. Arrived early.

4.99 for a can of coke???

MCO
OMA
Excellent 8.0

Nice flight. No issues. Flight staff was great.

Front desk check in guy in Orlando was a bit shady. Asked that we pay for our check-in bags with cash and wanted 10$ cash to put our seats together. I did not give him cash and had to ask for a reciept for the checked bags. We were 4 hours early for check in.

Thu, Feb 1
IAD
SJU
3h 45m
Sun, Feb 4
SJU
IAD
9h 37m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 10
IAD
SJU
3h 45m
Sun, Mar 11
SJU
IAD
3h 55m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

Sat, Mar 3
IAD
SJU
10h 17m
Wed, Mar 7
SJU
IAD
3h 55m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 31
IAD
SJU
3h 45m
Tue, Feb 6
SJU
IAD
3h 55m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

The personal are very amability

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
SJU
Excellent 10.0

Good trip

Nothing

Wed, Feb 28
IAD
SJU
3h 45m
Sun, Mar 11
SJU
IAD
3h 55m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

The personal are very amability

ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

IAD
SJU
Excellent 9.0

On time and comfort

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

Mon, Jul 2
IAD
SJU
8h 22m
Thu, Jul 12
SJU
IAD
4h 05m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 21
IAD
SJU
3h 45m
Wed, Mar 28
SJU
IAD
4h 00m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

IAD
SJU
Excellent 8.0

Services , on time

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Excellent 10.0

The personal are very amability

Tue, Jul 24
IAD
SJU
8h 23m
Thu, Aug 2
SJU
IAD
4h 05m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
IAD
SJU
3h 50m
Thu, Apr 5
SJU
IAD
4h 00m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

Sat, May 12
IAD
SJU
3h 50m
Wed, May 30
SJU
IAD
8h 39m
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
IAD
SJU
3h 50m
Sat, Apr 21
SJU
IAD
4h 00m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

EWR
SJU
Mediocre 2.0

Nothing

Terrible service. Flight delayed (two hours).

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

Sun, Apr 15
IAD
SJU
13h 55m
Sat, Apr 21
SJU
IAD
4h 00m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
SJU
Excellent 10.0

Good trip

Nothing

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

Thu, Mar 29
IAD
SJU
3h 50m
Thu, Apr 5
SJU
IAD
9h 58m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Jun 10
IAD
SJU
16h 20m
Thu, Jun 14
SJU
IAD
4h 05m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

IAD
SJU
Excellent 10.0

Good trip

Nothing

ORD
BNA
Excellent 10.0

Everything

Fri, Mar 9
IAD
SJU
3h 45m
Sat, Mar 17
SJU
IAD
3h 55m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

Sun, May 6
IAD
SJU
3h 50m
Sun, May 13
SJU
IAD
4h 00m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

Tue, Jun 19
IAD
SJU
3h 50m
Fri, Jun 22
SJU
IAD
4h 05m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

Good trip

Nothing

ORD
BNA
Excellent 10.0

Everything

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Excellent 10.0

The personal are very amability

Mon, Mar 26
IAD
SJU
3h 50m
Tue, Apr 3
SJU
IAD
4h 00m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
BNA
Excellent 10.0

Everything

EWR
SJU
Mediocre 2.0

Nothing

Terrible service. Flight delayed (two hours).

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

Mon, Apr 2
IAD
SJU
13h 45m
Fri, Apr 6
SJU
IAD
4h 00m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

IAD
SJU
Excellent 10.0

The personal are very amability

ORD
BNA
Excellent 10.0

Everything

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

Show more results

Washington Dulles Intl to San Juan Luis Munoz Marin International Flight Information

Avg. Flight Duration 3h 53m
Flights Arrive in San Juan Luis Munoz Marin International
Flights Depart from Washington Dulles Intl
Flight Price $188
Distance 1575 miles
Airlines Frontier, United
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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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.