Yes, there is a lot of difference in the price on weekends. Wednesday seems to be the best as far as cost goes, but that, of course, is not always feasible.

Audrey, are you asking about the day that you travel or the day that you purchase the ticket?

I'm flying Delta in three weeks, and I spent many hours waiting for prices to fluctuate, and finally bought, over two weeks ago. Just checked the other day to see if the prices had changed, and with my flight and Delta it hadn't changed a penny.

You can get alerts from different airfare sites when the prices go do.

Do a search for CHEAP AIRFARES and you will find them, and sign up for alerts.

Bing.com
Trip Advisor

Glenda has very good advice.....I have found prices are apt to vary almost hourly and if by chance you find a good rate, you do have to jump on it...When I travel, I go right to the airline site and if you can be flexible with your dates, you can get some good rates....Also, sometimes, you can find deals if you fly 1 way on 1 airline and return on another.....
Good luck in your search.........Safe travels....

I was a booking agent for 4 years with Cheap Tickets, until they sold us to another company and closed our call center. :0)

Coach class tickets start out with a class, a letter. There are generally 5 of those letters and then they sell the next letter.....and it's a few dollars more, then after those 5 are sold the price goes up with the next letter, until you will eventually pay almost double for a coach class seat when the plane is almost full. Some airlines charge more for seats next to exits because of the extra leg room. Or more for an aisle or window seat on a plane with 3 on each side and 5 seats in the middle.

If a flight isn't filling up an airline might reduce the price. OR.....for instance Quantas will give last minute deals about 3 days before a flight is scheduled to leave.

Some airlines discount flights stopping at hubs they own for refueling. Booking with multiple airlines can sometimes same you money if you don't mind the multiple stops.

I use "Travel Zoo"....to compare prices. And the program "Side step".

I was looking for particular flight time frame, and when I found the airline that met my schedule, I kept searching and searching with the help of airfare alerts.

When I realized the price wasn't going to change, I finally booked.

I also found looking after 10 pm on Sunday nights, you some times can find lower prices.

Have you looked at Southwest?

Thanks, everybody, for the advice. I need to get a ticket for a particular Delta flight, since a friend has already booked a seat on that flight. So I need to buy before all the other seats are taken. I did look at a chart of the plane a few days ago, and there were still quite a few seats left then. But you never know!

I will actually get reimbursed for this flight. But, since it's a small organization doing the reimbursing, they'd probably appreciate me getting the cheapest seat I can. So I think I'll wait until after the weekend, and see if the prices go down any.

May I suggest that you also clear all your computer cookies (under "Tools") in your computer before checking. I don't know for sure that this makes a difference, but it couldn't hurt.