I almost always check the costs of the same flights over and over before purchasing them. I’ve actually been doing that a lot lately because I have a bunch of small trips coming up this Fall. (Side note: since when are flights from SF to Phoenix over $300??? I remember those flights being around $200, tops, just a few years ago!)
Although prices may fluctuate a bit over time (and even throughout the week), I try not to worry about it too much when I book my flights through Orbitz because of their “Price Assurance” program. If someone else buys the same exact flights as I do for a cheaper fare, Orbitz will automatically issue me credits for 110% of the difference. (They used to just send you a check for the difference, but now you just get credit towards future Orbitz purchases. Still not too shabby.)
So if you’re on the fence about whether to book your honeymoon flights, and you’re taking a pretty popular route*, book confidently with Orbitz knowing that if someone else books the same itinerary through Orbitz as well but for a cheaper price, you’ll still get something out of it.
* This “Price Assurance” deal has a higher probability of actually benefiting you if you’re booking a popular route (e.g. SFO to HNL) rather than a random multi-destination itinerary because there’s a greater chance that other people are also searching for the same flights.