$181 Cheap Flights from Portland (PDX) to Dayton (DAY)

View $181 flight on Wed, Dec 3, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Dayton Intl. Airport (DAY)

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Cheap Flights from Portland to Dayton (PDX-DAY)

Prices were available within the past 7 days and start at $181 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Dec 3 - Sun, Dec 7
PDX
Portland
DAY
Dayton
$289 Roundtrip, found 16 hours ago
$289
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Dec 3 from Portland to Dayton, returning Sun, Dec 7, priced at $289 found 16 hours ago
United
Wed, Apr 15 - Tue, Apr 21
PDX
Portland
DAY
Dayton
$289 Roundtrip, found 9 hours ago
$289
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Apr 15 from Portland to Dayton, returning Tue, Apr 21, priced at $289 found 9 hours ago
Delta
Thu, Nov 27 - Thu, Dec 4
PDX
Portland
DAY
Dayton
$294 Roundtrip, found 23 hours ago
$294
Roundtrip
found 23 hours ago
Select Delta flight, departing Thu, Nov 27 from Portland to Dayton, returning Thu, Dec 4, priced at $294 found 23 hours ago
United
Wed, Apr 15 - Tue, Apr 21
PDX
Portland
DAY
Dayton
$315 Roundtrip, found 9 hours ago
$315
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Apr 15 from Portland to Dayton, returning Tue, Apr 21, priced at $315 found 9 hours ago
United
Wed, Jan 7 - Sun, Jan 11
PDX
Portland
DAY
Dayton
$317 Roundtrip, found 6 days ago
$317
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 7 from Portland to Dayton, returning Sun, Jan 11, priced at $317 found 6 days ago
Delta
Thu, Dec 4 - Mon, Dec 8
PDX
Portland
DAY
Dayton
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Dec 4 from Portland to Dayton, returning Mon, Dec 8, priced at $318 found 1 day ago
United
Wed, Apr 15 - Tue, Apr 21
PDX
Portland
DAY
Dayton
$324 Roundtrip, found 9 hours ago
$324
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Apr 15 from Portland to Dayton, returning Tue, Apr 21, priced at $324 found 9 hours ago
Delta
Sat, Jan 24 - Tue, Feb 3
PDX
Portland
DAY
Dayton
$329 Roundtrip, found 4 days ago
$329
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Jan 24 from Portland to Dayton, returning Tue, Feb 3, priced at $329 found 4 days ago
Alaska Airlines
Tue, Jan 6 - Tue, Jan 20
PDX
Portland
DAY
Dayton
$379 Roundtrip, found 7 hours ago
$379
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Jan 6 from Portland to Dayton, returning Tue, Jan 20, priced at $379 found 7 hours ago
American Airlines
Wed, Dec 3 - Sun, Dec 7
PDX
Portland
DAY
Dayton
$382 Roundtrip, found 16 hours ago
$382
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, Dec 3 from Portland to Dayton, returning Sun, Dec 7, priced at $382 found 16 hours ago

Find the cheapest month to fly from Portland (PDX) to Dayton (DAY)

May is typically the cheapest month to fly

From $280 - $718 per traveler.

Alternative airports near Dayton

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to James M. Cox Dayton Intl. DAY. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $324
DAY
James M. Cox Dayton Intl.
Cheapest
Average driving time to city center16 min
Flights from $324

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY) cost?
Snag a cheap one-way flight from $181 or cheap return flight from $289 from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY)?
December is the least expensive month to fly from PDX to DAY. Traveling outside of peak seasons is often the key to better flight prices.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PDX to DAY flight.
How many flights per day from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY)?
You'll need to catch a flight with a layover when traveling from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from PDX to DAY?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY)?
To avoid potential delays on the Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY) last-minute?
Last-minute fares from PDX to DAY are typically more expensive. To lock in the cheapest rates, start searching for flights ahead of time. That being said, if your travel plans are flexible, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a PDX to DAY flight and hotel package?
Compared with arranging hotels and flights separately, booking a PDX to DAY flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of travel planning. Just pick your flights and choose from our extensive range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to James M. Cox Dayton Intl. Airport (DAY)?
In most instances, you're able to reschedule or cancel your PDX to DAY flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
James M. Cox Dayton Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$288
Distance
1966 mi

Book with confidence

Portland to Dayton Flights

The cheapest times to fly from Portland to Dayton

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Dayton are during the month of December. You can find some of the cheapest flights from Portland to Dayton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Dayton

Sunday is one of the best days to book for cheap flights from Portland to Dayton: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Dayton

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Dayton in 2025. You can also book with separate airlines for your outbound and return journeys, from $181 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Dayton flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Dayton airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portland to Dayton Flights

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*Available to One Key members.