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$575+ Cheap flights from Green Bay (GRB) to Istanbul (IST)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — IST
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Green Bay to Istanbul

Best flights from Green Bay to Istanbul
Discover carefully curated flight deals from Green Bay to Istanbul that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 2/26:31 amGRB - IST
2 stops26h 24mUnited Airlines
Mon 2/96:30 amIST - GRB
2 stops21h 33mUnited Airlines
Deal found 12/11$575
This American Airlines deal was found by Cheapflights users on 12/11. 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 2/26:00 amGRB - IST
2 stops26h 30mAmerican Airlines
Mon 2/98:15 amIST - GRB
3 stops22h 57mAmerican Airlines
Deal found 12/11$778
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 1/233:42 pmGRB - IST
2 stops17h 23mUnited Airlines
Tue 1/276:30 amIST - GRB
2 stops16h 32mUnited Airlines
Deal found 12/9$575

Find flight deals from Green Bay to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$575
(United Airlines)
Provider with most accurate pricing for Green Bay Austin-Straubel-Istanbul flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Istanbul flights.
Search Deals
From Green Bay Austin-Straubel to Istanbul
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Istanbul 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 December 12, 2025.
Use the filters below to find and compare flights from Green Bay to Istanbul Airport that are best for you.

Fly from

Green Bay

Fly to

Istanbul

Route

Depart

Return

Price

Green BayIstanbul

GRB - IST

GRBIST

Green Bay Austin-Straubel

Mon 2/2

6:31 am-5:55 pm

2 stops26h 24m

Istanbul

Mon 2/9

6:30 am-7:03 pm

2 stops21h 33m

$575

Green BayIstanbul

GRB - IST

GRBIST

Green Bay Austin-Straubel

Fri 1/23

3:42 pm-6:05 pm

2 stops17h 23m

Istanbul

Tue 1/27

6:30 am-2:02 pm

2 stops16h 32m

$575

Green BayIstanbul

GRB - IST

GRBIST

Green Bay Austin-Straubel

Mon 2/2

6:00 am-5:30 pm

2 stops26h 30m

Istanbul

Mon 2/9

8:15 am-10:12 pm

3 stops22h 57m

$778

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Compare providers for flights from Green Bay to Istanbul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Istanbul in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Green Bay-Istanbul Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Green Bay-Istanbul Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Green Bay-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-Istanbul Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Green Bay to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Green Bay 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.

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. 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 Istanbul. Reviews last updated December 12, 2025.
See what other customers who have flown with British Airways from Green Bay to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews

Crew

7.6

Food

6.4

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,571 reviews
British Airways
6.7
Okay
7,571 reviews

Crew

7.6

Food

6.4

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to Istanbul?

    If you book a flight to Istanbul from Green Bay, you will be flying from Austin-Straubel, which is the city’s only airport. Green Bay Austin-Straubel (GRB) is located 5.9 mi from the center of Green Bay. There are 0 flights from Austin-Straubel to Istanbul per day from 1 airline.

  • How long is the flight from Green Bay to Istanbul Airport?

    For as low as $575, United Airlines can have you in Istanbul Airport from Green Bay in 26h 24m. The distance between Green Bay and Istanbul Airport is about 5337 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Green Bay to Istanbul that include hotel bookings?

    Yes. In addition to deals on Green Bay to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Istanbul.

  • Can I find deals for business class flights from Green Bay to Istanbul?

    Yes. Cheapflights offers flight deals from Green Bay to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Green Bay to Istanbul

Discover the top airline that operate flights from Green Bay to Istanbul. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$635Average$689FlexibilityNo cancel feeOn-time70%

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