---
title: "Cedar Rapids to Sidney cheap flights (CID to SDY) - Expedia"
description: "Cheap Flights from Cedar Rapids (CID) to Sidney (SDY) start at for one-way and for round trip. Earn your airline miles on top of our rewards!"
canonical: "https://www.expedia.com/lp/flights/cid/sdy/cedar-rapids-to-sidney"
language: en-US
market: US
currency: USD
prices_as_of: 2026-11-15T09:14:36Z
---

# Cheap Flights from Cedar Rapids (CID) to Sidney (SDY)
![A wheat field with a grain elevator and silo under a cloudy sky.](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

## Popular airlines from Eastern Iowa Airport (CID) to Sidney, MT (SDY-Sidney-Richland Municipal)

[American Airlines](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}])

[United](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}])

[Southwest Airlines](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}])

Southwest Airli · nes

[Delta](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}])

[Frontier Airlines](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}])

[JetBlue Airways](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}])

[Alaska Airlines](https://www.expedia.com/Flights-Search?leg1=from:CID,to:SDY,departure:11/29/2026TANYT&leg2=from:SDY,to:CID,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}])

## Book with confidence

### Cedar Rapids to Sidney Flights

#### The cheapest times to fly from Cedar Rapids to Sidney

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

#### The best time to book a flight from Cedar Rapids to Sidney

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

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 Cedar Rapids to Sidney in 2026\. You can also book with separate airlines for your outbound and return journeys, from 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 Cedar Rapids to Sidney 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](https://www.expedia.com/package-deals). Bundling together your Cedar Rapids to Sidney 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 Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY) cost?

Lock in a cheap one-way flight or cheap return flight from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY) 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 Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY)?

Planning your trip for may help you find better deals, as it's the cheapest month for flights between CID and SDY. You'll usually find the lowest prices during off-peak months.

### What is the cheapest airline that flies from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY)?

Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from CID to SDY. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.

### How many flights per day from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY)?

Nonstop flights from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."

### What day of the week has the most flights from CID to SDY?

You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.\* However this can change from season to season and during public holidays or peak travel times.

*\*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.*

### What is the best time to fly from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY)?

Select a flight from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.\*

*\*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 Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY) last-minute?

Last-minute bookings from CID to SDY are typically more expensive. For the cheapest rates, start searching for flights as early as possible. That said, if you can play around with your travel dates, you may find a cheap fare right before you leave.

### Is it cheaper to book a CID to SDY flight and hotel package?

You'll typically save money by securing a CID to SDY [flight and hotel package](https://www.expedia.com/Sidney.d3119.Destination-Travel-Guides) compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your ideal accommodations and flights, you can add extras like tours, car rentals and activities.

### Can I cancel or change the date of my flight from Eastern Iowa Airport (CID) to Sidney-Richland Municipal Airport (SDY)?

In most cases, you can modify or cancel your CID to SDY flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check [your itinerary](https://www.expedia.com/trips) for the airline's fees and rules on flight changes, or if you need further information, head to our [Customer Service portal](https://www.expedia.com/helpcenter).

## Travel information

| Origin airport      | Eastern Iowa Airport |
| ------------------- | -------------------- |
| Destination airport | Sidney, MT           |
| Distance            | 730 miles away       |

## Explore a world of travel with Expedia

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\*Available to One Key members.

## Other language versions

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