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Cabo San Lucas

$148+ Cheap flights from Dulles Intl (IAD) to Cabo San Lucas, Mexico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Dulles Intl to Cabo San Lucas

Keep the following information in mind while searching for Dulles Intl to Cabo San Lucas flight deals. Data was last updated January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$399
(Delta)

One-way from

$148
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$502
Provider with most accurate pricing for Washington, D.C. (WAS)-San José del Cabo Los Cabos flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San José del Cabo Los Cabos flights.
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From Washington, D.C. Dulles Intl to Cabo San Lucas
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One-way flight from Washington, D.C. Dulles Intl to Cabo San Lucas
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Highest demand for flights based on searches. 8% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Dulles Intl to Cabo San Lucas

Cheapest flights from Dulles Intl to Cabo San Lucas
Explore the most affordable flight options available from Dulles Intl to Cabo San Lucas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Delta deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:20 pmIAD - SJD
1 stop9h 09mDelta
Fri 3/272:19 pmSJD - IAD
1 stop7h 12mDelta
Deal found 1/6$394
This Delta deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:29 pmIAD - SJD
2 stops15h 16mDelta
Thu 4/92:19 pmSJD - IAD
1 stop7h 12mDelta
Deal found 1/8$403
This American Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:00 amIAD - SJD
1 stop10h 42mAmerican Airlines
Sun 2/157:35 amSJD - IAD
1 stop13h 18mAmerican Airlines
Deal found 1/5$404
This American Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:00 amIAD - SJD
1 stop15h 56mAmerican Airlines
Mon 3/91:10 pmSJD - IAD
1 stop18h 50mAmerican Airlines
Deal found 1/5$405
This American Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:00 amIAD - SJD
1 stop10h 10mAmerican Airlines
Tue 3/33:53 pmSJD - IAD
1 stop22h 41mAmerican Airlines
Deal found 1/6$407
This American Airlines deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:45 pmIAD - SJD
1 stop19h 34mAmerican Airlines
Sat 8/810:25 amSJD - IAD
2 stops19h 17mAmerican Airlines
Deal found 1/8$409
This American Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/245:46 pmIAD - SJD
2 stops21h 06mAmerican Airlines
Sat 1/313:43 pmSJD - IAD
2 stops17h 15mAmerican Airlines
Deal found 1/7$412
This American Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/245:46 pmIAD - SJD
1 stop20h 59mAmerican Airlines
Fri 1/301:45 pmSJD - IAD
1 stop7h 27mAmerican Airlines
Deal found 1/7$414
This United Airlines deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2810:10 pmIAD - SJD
1 stop17h 05mUnited Airlines
Wed 3/412:49 pmSJD - IAD
1 stop7h 27mUnited Airlines
Deal found 1/8$415
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/78:15 amIAD - SJD
1 stop8h 17mUnited Airlines
Mon 2/93:46 pmSJD - IAD
1 stop11h 35mUnited Airlines
Deal found 1/7$416

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Cabo San Lucas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas that are best for you.

Fly from

Dulles Intl

Fly to

Cabo San Lucas

Route

Depart

Return

Price

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Mon 3/23

4:20 pm-10:29 pm

1 stop9h 09m

San José del Cabo Los Cabos

Fri 3/27

2:19 pm-12:31 am

1 stop7h 12m

$394

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sat 2/7

10:28 pm-1:03 pm

1 stop16h 35m

San José del Cabo Los Cabos

Sat 2/14

12:49 pm-10:16 pm

1 stop7h 27m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 3/18

12:47 pm-10:29 pm

2 stops12h 42m

San José del Cabo Los Cabos

Wed 3/25

10:32 am-12:31 am

2 stops10h 59m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 2/1

12:23 pm-10:30 pm

2 stops12h 07m

San José del Cabo Los Cabos

Wed 2/4

10:25 am-11:57 pm

2 stops11h 32m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 2/1

6:00 am-5:52 pm

2 stops13h 52m

San José del Cabo Los Cabos

Sat 2/7

6:05 am-11:06 pm

2 stops15h 01m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Fri 1/30

6:00 am-12:12 pm

1 stop8h 12m

San José del Cabo Los Cabos

Wed 2/4

10:25 am-11:57 pm

2 stops11h 32m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 2/19

3:15 pm-10:27 pm

1 stop9h 12m

San José del Cabo Los Cabos

Mon 2/23

4:56 pm-9:13 am

2 stops14h 17m

$399

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Mon 3/9

4:20 pm-10:29 pm

1 stop9h 09m

$172

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Mon 2/2

3:15 pm-10:30 pm

1 stop9h 15m

$172

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 2/25

3:15 pm-10:27 pm

1 stop9h 12m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 14 results
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Best time to book a flight from Dulles Intl to Cabo San Lucas

Have a flexible travel schedule? Discover the best time to fly to Cabo San Lucas from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Cabo San Lucas. Price data was last updated on January 2, 2026.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $192). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in April is currently the most expensive (average of $496). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Cabo San Lucas

Get insights into the airlines that provide service to Cabo San Lucas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cabo San Lucas. Reviews last updated January 8, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta, United Airlines, and Aeromexico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,027 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,027 reviews
Delta
7.9
Good
8,027 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,139 reviews
Delta
7.9
Good
8,027 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Aeromexico
7.4
Good
1,606 reviews
Delta
7.9
Good
8,027 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,097 reviews
Delta
7.9
Good
8,027 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Cabo San Lucas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

    A quick flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas can take about 9h 09m. Delta provides one of the quickest options available for as low as $394. There are 2182 mi between Washington, D.C. Dulles Intl Airport and Cabo San Lucas.

  • Can I find deals for flights from Dulles Intl to Cabo San Lucas that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Cabo San Lucas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Cabo San Lucas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Cabo San Lucas.

  • Can I find deals for business class flights from Dulles Intl to Cabo San Lucas?

    Yes. Cheapflights offers flight deals from Dulles Intl to Cabo San Lucas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $192). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in April is currently the most expensive (average of $496). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Dulles Intl to Cabo San Lucas

Discover the top 4 airlines that operate flights from Dulles Intl to Cabo San Lucas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$173Average$449FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$196Average$444FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$396Average$593FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$396Average$549FlexibilityNo cancel feeOn-time69%

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