Cheap flights from Washington Dulles to San Juan from $70

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Cheap Washington Dulles - San Juan flight offers

Find cheap flight tickets and last-minute flight deals from Washington Dulles to San Juan

Frontier Airlines
Thu, 07/09 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Mon, 07/13 (SJU) San Juan -> (IAD) Washington
Direct

Price found 13 days ago
from $140
Frontier Airlines
Sat, 07/25 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Wed, 07/29 (SJU) San Juan -> (IAD) Washington
Direct

Price found 3 days ago
from $160
Frontier Airlines
Tue, 07/14 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Fri, 07/17 (SJU) San Juan -> (IAD) Washington
Direct

Price found 4 days ago
from $162
Frontier Airlines
Thu, 07/16 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Sun, 07/19 (SJU) San Juan -> (IAD) Washington
Direct

Price found 8 days ago
from $163
United
Tue, 07/14 (IAD) Washington -> (SJU) San Juan
Direct
United
Thu, 07/16 (SJU) San Juan -> (IAD) Washington
Direct

Price found 3 days ago
from $172
DELTA
Wed, 09/23 (IAD) Washington -> (SJU) San Juan
DELTA
Sun, 09/27 (SJU) San Juan -> (IAD) Washington

Price found 10 days ago
from $185
Frontier Airlines
Thu, 07/16 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Mon, 07/20 (SJU) San Juan -> (IAD) Washington
Direct

Price found 2 days ago
from $227
Frontier Airlines
Tue, 07/14 (IAD) Washington -> (SJU) San Juan
Direct

Price found 6 days ago
from $70
Frontier Airlines
Wed, 07/01 (IAD) Washington -> (SJU) San Juan
Direct

Price found 6 days ago
from $78
Frontier Airlines
Wed, 07/22 (IAD) Washington -> (SJU) San Juan
Direct

Price found 14 days ago
from $79
Frontier Airlines
Thu, 07/23 (IAD) Washington -> (SJU) San Juan
Direct

Price found 14 days ago
from $109
United
Fri, 09/11 (IAD) Washington -> (SJU) San Juan
Direct

Price found 7 days ago
from $200
Frontier Airlines
Thu, 07/09 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Mon, 07/13 (SJU) San Juan -> (IAD) Washington
Direct

Price found 13 days ago
from $140
Frontier Airlines
Sat, 07/25 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Wed, 07/29 (SJU) San Juan -> (IAD) Washington
Direct

Price found 3 days ago
from $160
Frontier Airlines
Tue, 07/14 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Fri, 07/17 (SJU) San Juan -> (IAD) Washington
Direct

Price found 4 days ago
from $162
Frontier Airlines
Thu, 07/16 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Sun, 07/19 (SJU) San Juan -> (IAD) Washington
Direct

Price found 8 days ago
from $163
United
Tue, 07/14 (IAD) Washington -> (SJU) San Juan
Direct
United
Thu, 07/16 (SJU) San Juan -> (IAD) Washington
Direct

Price found 3 days ago
from $172
Frontier Airlines
Thu, 07/16 (IAD) Washington -> (SJU) San Juan
Direct
Frontier Airlines
Mon, 07/20 (SJU) San Juan -> (IAD) Washington
Direct

Price found 2 days ago
from $227

Info about flights from Washington Dulles to San Juan

Some useful info about flights from Washington Dulles to San Juan to help you plan your next trip

Best price last 15 days $70
Average flight duration 3h 59m
Cheapest month March
Average number of flights per week 9
First flight time 02:25
Last flight time 22:45
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Top airlines on the route Washington Dulles - San Juan

Airlines providing flights to San Juan from Washington Dulles

How much is a flight from Washington Dulles to San Juan?

Depending on when you travel and how far in advance you book, fares between Washington and San Juan can differ a lot.

$70 is the best price recorded in the last 15 days.

Low-cost airlines offer competitive fares, but often add charges for extra services. Keep that in mind when planning your trip. Also, midweek departures may offer better deals than weekends.

Is there more than one airport in Washington or San Juan?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

  • Airports in Washington: Washington has 3 airports - Dulles international, Ronald Reagan, Washington International.
  • Airports in San Juan: Isla Grande is another arrival option.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near San Juan as well.

Flights from Washington - Dulles international to San Juan - Luis Muñoz Marín

Flight filters for the route Washington Dulles – San Juan

Customize your search on Jetcost to focus only on flights that suit your needs. Whether you want a direct connection, specific airline, or shorter layover, filters help you find it faster.

Other popular destinations

Flights to Puerto Rico are often searched alongside: Aguadilla, Culebra Airport, Mayaguez, Ponce, San Juan.

The cheapest flights might leave at odd hours or arrive at less central airports — keep that in mind. If you travel often, you can always select your trusted airlines from the available options.

Frequently Asked Questions

Frequently asked questions about flights from Washington Dulles to San Juan.

How much does an airline ticket from Washington Dulles to San Juan cost?

The lowest price recorded in the last 15 days for a flight from Washington Dulles to San Juan is $70.

How far is Washington from San Juan?

Washington is about 1575 mi from San Juan.

What are the airports in San Juan?

San Juan has another airport: Isla Grande.

What are the airports in Washington?

Washington has 3 airports: Dulles international, Ronald Reagan, Washington International.

What are the most popular cities in Puerto Rico?

The most popular cities in Puerto Rico according to our users' searches are: Aguadilla, Culebra Airport, Mayaguez, Ponce, San Juan.

When should I book a flight from Washington to San Juan?

The best time to book a flight from Washington to San Juan is 1 month in advance, while the worst time is 1 week in advance.

What is the cheapest month to fly from Washington to San Juan?

The cheapest month to fly from Washington to San Juan is February.

What is the most expensive month to fly from Washington to San Juan?

The most expensive month to fly from Washington to San Juan is September.

What is the best day of the week to fly from Washington to San Juan?

For flights from Washington to San Juan Tuesday is on average the cheapest day to fly, while Saturday is the most expensive day to fly.