$243 Cheap Flights from Sidney (SDY) to Tulsa (TUL)

View $243 flight on Wed, Dec 17, 2025Opens in a new window

Popular airlines from Sidney, MT (SDY-Sidney-Richland Municipal) to Tulsa International Airport (TUL)

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Cheap Flights from Sidney to Tulsa (SDY-TUL)

Prices were available within the past 7 days and start at $243 for one-way flights and $608 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Tue, Sep 2 - Thu, Sep 4
SDY
Sidney
TUL
Tulsa
$608 Roundtrip, found 2 days ago
$608
Roundtrip
found 2 days ago
Select Cape Air flight, departing Tue, Sep 2 from Sidney to Tulsa, returning Thu, Sep 4, priced at $608 found 2 days ago
Cape Air
Tue, Sep 2 - Wed, Sep 3
SDY
Sidney
TUL
Tulsa
$653 Roundtrip, found 2 days ago
$653
Roundtrip
found 2 days ago
Select Cape Air flight, departing Tue, Sep 2 from Sidney to Tulsa, returning Wed, Sep 3, priced at $653 found 2 days ago
Flights from Sidney (SDY) to Tulsa (TUL)
Origin airport
Sidney-Richland Municipal
Destination airport
Tulsa Intl.
Roundtrip price
$607
Distance
901 mi

Sidney to Tulsa Flights

The cheapest times to fly from Sidney to Tulsa

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 Sidney to Tulsa are during the month of September. You can find some of the cheapest flights from Sidney to Tulsa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sidney to Tulsa

Sunday is one of the best days to book for cheap flights from Sidney to Tulsa: 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 Sidney to Tulsa

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 Sidney to Tulsa in 2025. You can also book with separate airlines for your outbound and return journeys, from $243 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 Sidney to Tulsa 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 Sidney to Tulsa 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.

 

Frequently asked questions

How much does a flight from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL) cost?
Secure a cheap one-way flight from $243 or cheap return flight from $608 from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL)?
Traveling in September is a good way to save, as it's the cheapest month for flights between SDY and TUL. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from SDY to TUL. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL)?
Nonstop flights from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDY to TUL?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier 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 Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL)?
To arrive at Tulsa Intl. Airport (TUL) on time, opt for a flight that leaves Sidney-Richland Municipal Airport (SDY) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL) last-minute?
Holding off until just before your departure to book a flight from SDY to TUL often results in higher prices. While you may come across some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book a SDY to TUL flight and hotel package?
Compared with arranging hotels and flights separately, booking a SDY to TUL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Sidney-Richland Municipal Airport (SDY) to Tulsa Intl. Airport (TUL)?
Typically, you can cancel or reschedule your SDY to TUL flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

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*Available to One Key members.