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Cabo San Lucas

$146+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Cabo San Lucas are usually found in September or January, booked 47 days in advance, depart on a Monday or Saturday and return on a Monday

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 September 17, 2025.

Round-trip from

$403
(Delta)

One-way from

$146
(SmartFares)

Popular in

April

Cheapest in

September

Average price

$468
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. 16% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 11/166:00 amIAD - SJD
2 stops14h 15mDelta
Thu 11/206:00 amSJD - IAD
2 stops16h 18mDelta
Deal found 9/15$403
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 11/96:00 amIAD - SJD
2 stops14h 07mDelta
Sat 11/154:34 pmSJD - IAD
2 stops14h 36mDelta
Deal found 9/15$408
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:11 amIAD - SJD
1 stop12h 14mAmerican Airlines
Thu 11/61:25 pmSJD - IAD
1 stop7h 07mAmerican Airlines
Deal found 9/15$413
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/188:25 pmIAD - SJD
2 stops18h 20mAmerican Airlines
Wed 10/222:50 pmSJD - IAD
2 stops15h 04mAmerican Airlines
Deal found 9/15$418
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/196:04 amIAD - SJD
1 stop10h 51mAmerican Airlines
Wed 11/265:26 pmSJD - IAD
1 stop21h 16mAmerican Airlines
Deal found 9/17$420
This American Airlines deal was found by Cheapflights users on 9/15. 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 11/15:37 pmIAD - SJD
1 stop21h 48mAmerican Airlines
Sat 11/81:41 pmSJD - IAD
1 stop8h 18mAmerican Airlines
Deal found 9/15$422
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 12/148:05 pmIAD - SJD
2 stops18h 34mAmerican Airlines
Sun 12/215:24 pmSJD - IAD
2 stops18h 03mAmerican Airlines
Deal found 9/15$423
This American Airlines deal was found by Cheapflights users on 9/17. 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 11/175:29 pmIAD - SJD
2 stops20h 56mAmerican Airlines
Mon 11/2411:23 amSJD - IAD
2 stops19h 18mAmerican Airlines
Deal found 9/17$424
This Aeromexico deal was found by Cheapflights users on 9/15. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:56 pmIAD - SJD
1 stop19h 31mAeromexico
Mon 11/36:55 pmSJD - IAD
1 stop17h 07mAeromexico
Deal found 9/15$426
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/306:30 amIAD - SJD
1 stop8h 33mUnited Airlines
Tue 11/412:50 pmSJD - IAD
1 stop9h 09mUnited Airlines
Deal found 9/16$429
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/136:30 amIAD - SJD
1 stop7h 58mUnited Airlines
Mon 10/2012:30 pmSJD - IAD
1 stop14h 08mUnited Airlines
Deal found 9/15$430

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 September 17, 2025.
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

Sun 11/16

6:00 am-6:15 pm

2 stops14h 15m

San José del Cabo Los Cabos

Thu 11/20

6:00 am-12:18 am

2 stops16h 18m

$403

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 11/9

6:00 am-6:07 pm

2 stops14h 07m

San José del Cabo Los Cabos

Sat 11/15

4:34 pm-9:10 am

2 stops14h 36m

$408

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 10/30

6:11 am-3:25 pm

1 stop12h 14m

San José del Cabo Los Cabos

Thu 11/6

1:25 pm-10:32 pm

1 stop7h 07m

$413

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 12/14

6:00 am-3:22 pm

2 stops11h 22m

San José del Cabo Los Cabos

Sun 12/21

1:16 pm-8:42 am

2 stops17h 26m

$423

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sat 11/1

5:37 pm-4:26 pm

1 stop25h 49m

San José del Cabo Los Cabos

Sat 11/8

11:24 am-8:41 am

2 stops19h 17m

$427

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 10/30

6:30 am-12:03 pm

1 stop8h 33m

San José del Cabo Los Cabos

Tue 11/4

3:35 pm-7:21 am

1 stop13h 46m

$429

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Mon 10/13

6:30 am-11:28 am

1 stop7h 58m

San José del Cabo Los Cabos

Mon 10/20

12:30 pm-5:38 am

1 stop14h 08m

$430

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sat 10/18

6:00 am-9:56 pm

2 stops18h 56m

San José del Cabo Los Cabos

Thu 10/30

6:00 am-11:20 pm

2 stops14h 20m

$432

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 10/19

7:05 am-7:28 pm

2 stops15h 23m

San José del Cabo Los Cabos

Sat 10/25

6:00 am-11:00 pm

2 stops14h 00m

$440

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Mon 10/6

6:00 am-11:42 am

1 stop8h 42m

San José del Cabo Los Cabos

Wed 10/22

6:00 am-11:18 pm

2 stops14h 18m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 20 results
1
2

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 September 12, 2025.

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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $437). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in March is currently the most expensive (average of $549). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

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 September 17, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta, Aeromexico, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aeromexico
7.5
Good
1,696 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 12h 14m. Delta provides one of the quickest options available for as low as $413. There are 2182 mi between Washington, D.C. Dulles Intl Airport and Cabo San Lucas. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $437). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in March is currently the most expensive (average of $549). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$226Average$584FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$373Average$457FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$591FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$393Average$609FlexibilityNo cancel feeOn-time71%

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