$301 Find Cheap Flights from Washington Dulles Airport to São Miguel - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to São Miguel departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Dulles Intl to São Miguel Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to São Miguel that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to São Miguel

Sat, Sep 19 - Mon, Sep 28
TAP AIR PORTUGAL Logo
10:35 pm - 11:45 pm
IAD
-
PDL
21h 10m
1 stop
TAP AIR PORTUGAL Logo
3:50 pm - 3:10 pm
PDL
-
IAD
27h 20m
1 stop
$672TAP AIR PORTUGAL
Sat, Sep 19 - Mon, Sep 28
TAP AIR PORTUGAL Logo
10:35 pm - 11:45 pm
IAD
-
PDL
21h 10m
1 stop
TAP AIR PORTUGAL Logo
7:40 pm - 3:10 pm
PDL
-
IAD
23h 30m
1 stop
$673TAP AIR PORTUGAL
Sat, Oct 10 - Sat, Oct 17
TAP AIR PORTUGAL Logo
5:05 pm - 9:45 am
IAD
-
PDL
12h 40m
1 stop
TAP AIR PORTUGAL Logo
3:50 pm - 3:10 pm
PDL
-
IAD
27h 20m
1 stop
$677TAP AIR PORTUGAL
Fri, Jan 15 - Fri, Jan 22
TAP AIR PORTUGAL Logo
10:30 pm - 6:35 pm
IAD
-
PDL
16h 05m
1 stop
TAP AIR PORTUGAL Logo
9:30 am - 8:35 pm
PDL
-
IAD
15h 05m
1 stop
$677TAP AIR PORTUGAL
Wed, Oct 14 - Wed, Oct 21
TAP AIR PORTUGAL Logo
5:45 pm - 9:45 am
IAD
-
PDL
12h 00m
1 stop
TAP AIR PORTUGAL Logo
6:30 am - 3:10 pm
PDL
-
IAD
12h 40m
1 stop
$677TAP AIR PORTUGAL
Thu, Nov 12 - Mon, Nov 16
TAP AIR PORTUGAL Logo
5:25 pm - 8:20 am
IAD
-
PDL
10h 55m
1 stop
TAP AIR PORTUGAL Logo
7:25 pm - 2:45 pm
PDL
-
IAD
23h 20m
1 stop
$677TAP AIR PORTUGAL
Thu, Jan 14 - Mon, Jan 18
TAP AIR PORTUGAL Logo
5:25 pm - 8:20 am
IAD
-
PDL
10h 55m
1 stop
TAP AIR PORTUGAL Logo
6:30 am - 3:15 pm
PDL
-
IAD
12h 45m
1 stop
$677TAP AIR PORTUGAL
Wed, Oct 7 - Mon, Oct 12
TAP AIR PORTUGAL Logo
5:45 pm - 9:45 am
IAD
-
PDL
12h 00m
1 stop
TAP AIR PORTUGAL Logo
3:50 pm - 3:10 pm
PDL
-
IAD
27h 20m
1 stop
$677TAP AIR PORTUGAL
Tue, Aug 18 - Thu, Aug 27
United Airlines Logo
12:35 pm - 8:40 am
IAD
-
PDL
16h 05m
1 stop
United Airlines Logo
11:00 am - 4:35 pm
PDL
-
IAD
9h 35m
1 stop
$781United Airlines
Tue, Aug 18 - Thu, Aug 27
United Airlines Logo
12:35 pm - 8:20 am
IAD
-
PDL
15h 45m
2 stops
United Airlines Logo
11:00 am - 4:35 pm
PDL
-
IAD
9h 35m
1 stop
$785United Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to São Miguel flights

Get data-powered insights and trends into flights from Dulles Intl to São Miguel to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to São Miguel?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $559, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to São Miguel?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to São Miguel, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to São Miguel is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and November, when the average cost of round-trip tickets is $1,778 and $1,599 respectively.

Find deals

Good to know

Low season

February

Cheapest flight

$301
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Washington Dulles Airport to Ponta Delgada

FAQs - booking São Miguel flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to São Miguel?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to São Miguel.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to São Miguel?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to São Miguel is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to São Miguel?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to São Miguel with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to São Miguel?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to São Miguel up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to São Miguel

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to São Miguel. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to São Miguel? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
TAP AIR PORTUGALOverall score based on 2347 reviews
6.3Food
6.4Entertainment
7.1Comfort
7.0Boarding
7.8Crew
Airline reviews

They blocked me from checking in online and they charged me lots of money

2.0 MediocreAnonymous, Jul 2026
EWR - OPO
Read more TAP AIR PORTUGAL reviews

They blocked me from checking in online and they charged me lots of money

Everything was good with Tap Air Portugal. It was Logan Airport that was a problem. The fuel system was down and delayed my 10:40 boarding. I wasn't able to board my flight until 2:00 am...after that my flights were great.

Poor. Our flight was delayed and they told me I would be fine to make my connection in Lisbon, I missed it. Then they told me my bag would be automatically loaded onto my new flight to rome. It wasn’t. It’s been 4 days and I still don’t have it.

The seats were not designed to comfortably see people in coach for more than 10 minutes

Checked bG chstgr was extremely high. Over $120. It was s bsit and switch knowing an international passenger would have t9 check a bag.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Everything went very well. I would like to acknowledge the politeness and professionalism of the staff—they are superb. No complaints.

No legroom, have to pay for everything including water?!? Water is more expensive than beer?

We liked the crew. They were competent, professional and friendly. The only big negative was our departure was delayed several times and the airport staff did not communicate what the problems were and what we should expect.

Great staff who were ready working with smile 6 in the morning on New Year’s Day. Although security checkpoint was way too busy, the airline staff were understanding and waited few minutes after boarding. We took off not only exactly on time, but arrived 20 minutes early. Two thumbs up!!!

Everything you need to know for your flight to São Miguel

Information on your arrival and departure airports

Washington Dulles Airport (IAD)